Home · FSC 4730 Hose, Pipe, Tube, Lubrication, And Railing Fittings · NSN 4730-00-591-0656

NSN 4730-00-591-0656 — Coupling Assembly,Self-Sealing

NIIN 00-591-0656 · unit of issue EA · AAC F (not stocked, central procurement) · source of supply SMS

NSN 4730-00-591-0656 is the national stock number for a coupling assembly,self-sealing in federal supply class 4730 (Hose, Pipe, Tube, Lubrication, And Railing Fittings). It cross-references to 3 manufacturer part numbers from 2 CAGE codes, including Eaton Aeroquip LLC, U S Army Tank Automotive Command Amsta-Im-Mm; the primary is 155-12D. The unit of issue is EA and the FLIS list price is $773.05.

The U.S. government has bought this item 11 times on record, most recently on August 28, 2017 at $402.50 each from Aar Supply Chain, Inc. No seller has confirmed stock of it here in the last 60 days; watching the number is free and the first listing triggers an alert.

part numbers from 2 CAGEs

open solicitations, all agencies

government buys in 24 months

sellers with confirmed stock

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Cross-references

Part numbers filed against this stock number, with the manufacturer (CAGE) and the FLIS reference codes.

Part number	CAGE	Manufacturer	Reference	Variation
155-12D	00624	Eaton Aeroquip LLC	3 · Design control (vendor)	2 · Fully interchangeable
155-12S	00624	Eaton Aeroquip LLC	5 · Secondary reference	9 · Reference only
8686902	19207	U S Army Tank Automotive Command Amsta-Im-Mm	5 · Secondary reference	2 · Fully interchangeable

Government demand

Nothing open right now. Last government buy Aug 28, 2017. Watch this NSN and we will email you when it is solicited.

What the government paid

Date	Vendor	Qty	Unit cost	Buyer	Reference
Aug 28, 2017	Aar Supply Chain, Inc 1Y249	4	$402.50	Dla	SPE7M417V3169
Jan 17, 2017	Aar Supply Chain, Inc 1Y249	20	$402.50	Dla	SPE7M317P1176
Jun 17, 2016	Fournier Rubber & Supply Co 15761	10	$432.40	Dla	SPE7M316V2180
Jan 12, 2016	Aar Supply Chain, Inc 1Y249	9	$402.29	Dla	SPE7M316V0896
Jul 18, 2014	S I T Corporation 1MQB3	5	$395.94	Dla	SPE7M114VD781
Jun 30, 2014	Tnl Sales LLC 1XLG2	10	$353.49	Dla	SPE7M114VC842
Jan 23, 2014	Tnl Sales LLC 1XLG2	3	$366.10	Dla	SPE7M114V5604
Nov 5, 2012	Eastern Aero Supply Inc 5G555	3	$321.50	Dla	SPM7M313V1283
Nov 1, 2012	Herber Aircraft Service, Inc. 5S077	3	$336.20	Dla	SPM7MC13M0600
Sep 4, 2012	Eaton Aeroquip LLC 00624	10	$321.55	Dla	SPM7M312V6033
Aug 14, 2012	Eaton Aeroquip LLC 00624	10	$321.55	Dla	SPM7M312V5658

Sources: DLA DIBBS procurement history (unit cost), DLA award history, FPDS (all agencies), SAM.gov notices. 11 buys on record in total.

Sellers with confirmed stock

No seller has confirmed stock on this NSN in the last 60 days. Watch it and we will email you when one does, or request a quote on 155-12D.

Listings appear here only while the seller has confirmed them within 60 days. Sellers: list this part free.

DLA management data

FLIS unit price: $773.05
Unit of issue: EA
Acquisition advice: F — Not stocked, central procurement
Source of supply: SMS
Effective: Oct 1, 2025

Item characteristics

Thread Class: 3A
Overall Length: INCHES NOMINAL 5.060
Connection Type: FIRST QUICK DISCONNECT END THREADED EXTERNAL TUBE
Thread Quantity Per Inch: 12
Nominal Thread Size: FIRST QUICK DISCONNECT END INCHES 1.062
Operating Pressure: SINGLE RESPONSE POUNDS PER SQUARE INCH (PSI) MAXIMUM 3000.0
Seat Angle: DEGREES 37.0
Nominal Outside Diameter Tube Accommodated: FIRST QUICK DISCONNECT END INCHES 0.750
Material: BODY ALUMINUM ALLOY
Surface Treatment: BODY ANODIZE
Thread Series Designator: FIRST QUICK DISCONNECT END UN

About this page

An NSN is 13 digits: the 4-digit Federal Supply Class and the 9-digit NIIN. Cross-references come from the federal logistics record; demand from DLA DIBBS, SAM.gov and FPDS; ADs from the Federal Register. Refreshed nightly. Market Pulse shows the whole market.