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FSG 47 - Pipe, Tubing, Hose, and Fittings
FSC 4730 - Hose, Pipe, Tube, Lubrication and Railing Fittings
NSN 4730-00-001-1557

4730-00-001-1557

NIIN 00-001-1557 - Pipe to Tube Elbow

NSN 4730-00-001-1557 Classification

A fitting that forms an angle of less than 180 degrees (3.142 radians) from the straight flow. One connecting end has standard pipe threads, or is unthreaded and designed to accommodate a pipe. The other end has machine threads (straight threads other than pipe or hose series) designed to accommodate a tube, or is unthreaded and designed to accommodate a tube. It may have side or heel inlet(s). See also elbow, pipe; elbow, tube; and connector, multiple, fluid pressure line.

test set guidance-apv systems-t-3054 u/w subroc end item identification, threaded external tube first end connection type, flared (tube) first end connection style, plain (pipe) second end connection style, threaded external pipe second end connection type

National Stock Number: 4730-00-001-1557
Federal Supply Group: 47 - Pipe, Tubing, Hose, and Fittings
Federal Supply Classification: 4730 - Hose, Pipe, Tube, Lubrication and Railing Fittings
National Item Identification Number: 00-001-1557
Item Name Code: 03770
Assigned Date: Sun, Sep 24, 1972
Schedule B Code: 7307225000
Requires Demilitarization: DEMIL/MLI

NSN 4730-00-001-1557 Specification

Set by the OEM (See RNCC code 3)

Connection Style: flared (tube) first end
Connection Style: plain (pipe) second end
Connection Type: threaded external pipe second end
Connection Type: threaded external tube first end
End Item Identification: test set guidance-apv systems-t-3054 u/w subroc
Flow Angle: 90.0 degrees
Leg Length: 1.062 inches nominal first end
Leg Length: 1.094 inches nominal second end
Material Document And Classification: ams 5500 assn std single material response overall
Material: steel corrosion resisting overall
Nominal Outside Diameter Tube Accommodated: 0.375 inches first end
Nominal Thread Size: 0.250 inches second end
Nominal Pipe Size Accommodated: 0.250 inches second end
Nominal Thread Size: 0.562 inches first end
Reduced Passage Nominal Inside Diameter: 0.297 inches first end
Reduced Passage Nominal Inside Diameter: 0.297 inches second end
Seat Angle: 37.0 degrees first end
Thread Class: 3a first end
Thread Series Designator: npt second end
Thread Series Designator: unf first end

Quality Commitment

Quality, Safety, and Compliance in Every Supply Requirement

Serving aerospace, military, MRO, and industrial customers with quality-first sourcing, inspected products, audited supply chain processes, and compliance-focused support.

AS9120 Certified

Audited Supply Chain

ITAR Registered

DDTC Registered

HAZMAT Certified

Customer Service Objectives

Every Product 100% Inspected

Every product is 100% inspected to support quality assurance, safety, documentation, and dependable delivery for critical aerospace, defense, MRO, and industrial sourcing requirements.

NSN 4730-00-001-1557 Material

Hazmat, Precious Metals, Criticality, Environment, and ESD

(PMIC) Precious Metals Indicator

Precious metal content is unknown

What does the U code means?

Precious metals indicator code (pmic): this code is to identify items that have precious metals as part of their content. Precious metals are those metals generally considered to be uncommon and highly valuable which are relatively superior in certain properties such as resistance to corrosion and electrical conductivity. The precious metals recovery program for the federal government encompasses gold, silver, platinum, and the platinum family which consists of palladium, iridium, rhodium, osmium, and ruthenium. See volume 10, table 160 and quick info on-line.

(HMIC) Hazardous Metal Indicator

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

What does the N code means?

Hazardous materials indicator code: a code established in the dlis total item record (tir) to identify to users of the federal catalog system all known or suspected hazardous items as defined by safety/health, transaction and/or environmental regulations, to serve as a flag that a procuring activity must acquire a material safety data sheet when a hazardous item is procured, and to inform federal catalog system users when more detailed information on an item is available in the hazardous material information system. See volume 10, table 179 and quick info on-line.

Criticality Code

The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

What does the X code means?

Criticality code, federal item identification guide: a code which indicates when an item is technically critical, by reason of tolerance, fit, application, nuclear hardness properties or other characteristic which affects identification of the item. See volume 10, table 181 and quick info on-line.

Cross Reference Parts

Part numbers that meet the specification outlined on this page and set by the OEM

Part Number	CAGE	RNCC	RNVC	DAC	RNAAC	MSDS	SADC
2266775-7	10001	3	2	1	HD	-	-

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