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FSG 47 - Pipe, Tubing, Hose, and Fittings
FSC 4730 - Hose, Pipe, Tube, Lubrication and Railing Fittings
NSN 4730-01-250-1838

4730-01-250-1838

NIIN 01-250-1838 - Quick Disconnect Coupling Half

NSN 4730-01-250-1838 Classification

A fluid line fitting having a pipe, tube or hose connection or a through hole to accommodate a bolt, fluid passage on one end. The other end must have an internal or external quick disconnect feature for connecting a mating part to form a quick disconnect coupling assembly. The fitting may incorporate a self-sealing feature for the purpose of automatically shutting off the flow of fluid when disconnected from its mating half. For self-sealing fittings with an external or internal threaded disconnect end, see coupling half, self-sealing. See also, connector, multiple, fluid pressure line.

threaded internal pipe first fluid end connection connection type, steel corrosion resisting body material, 2.953 inches nominal overall length, plain all ends connection style, 0.500 inches all ends nominal thread size

National Stock Number: 4730-01-250-1838
Federal Supply Group: 47 - Pipe, Tubing, Hose, and Fittings
Federal Supply Classification: 4730 - Hose, Pipe, Tube, Lubrication and Railing Fittings
National Item Identification Number: 01-250-1838
Item Name Code: 18681
Assigned Date: Thu, Feb 26, 1987
Schedule B Code: 7307290000
Requires Demilitarization: DEMIL/MLI

NSN 4730-01-250-1838 Specification

Set by the OEM (See RNCC code 3)

Connection Style: plain all ends
Connection Type: threaded internal pipe first fluid end connection
Material: steel corrosion resisting body
Nominal Thread Size: 0.500 inches all ends
Overall Length: 2.953 inches nominal
Quick Disconnect Method: push-pull all ends
Style Designator: male coupling half
Thread Series Designator: npsf all ends

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 4730-01-250-1838 Material

Hazmat, Precious Metals, Criticality, Environment, and ESD

(PMIC) Precious Metals Indicator

Item does not contain precious metal.

What does the A 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
5110-S5-10B	01276	5	2	E	AX	-	-
5110-S5-10B	K1016	5	2	4	ZK	-	-
6135-08	30780	C	1	6	ZZ	-	AC
6601-8-10	97111	3	2	5	ZZ	-	-
78HC12-8F(MH0)	78357	3	2	E	AX	-	-
D8220	K1806	5	9	2	ZK	-	-
D8220	U7384	5	2	2	ZK	-	-
ST48D92-10C	04236	7	2	A	AX	-	-

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