Home · FSC 4730 Hose, Pipe, Tube, Lubrication, And Railing Fittings · NSN 4730-01-171-7161

NSN 4730-01-171-7161 — Coupling Half,Quick Disconnect

NIIN 01-171-7161 · unit of issue EA · AAC J (not stocked, central procurement) · source of supply SMS

Buying rhythm

from 5 government buys since 2017

The government has bought this item about every 9 months (irregular, gaps vary ±126%). Last buy Nov 6, 2025. The gaps are too uneven to put a window on the next one. 1 solicitation is open right now.

How well this works: for irregular items, "next buy about one typical gap after the last, give or take 151 days" caught the actual next buy 31% of the time across 21,161 past buys, against 24% for a fixed "one year later" guess. A rhythm, not a schedule: DLA buys when stock and demand say so. Every item due for a buy now.

Used on: F-16 Fighting Falcon · all platforms

NSN 4730-01-171-7161 is the national stock number for a coupling half,quick disconnect in federal supply class 4730 (Hose, Pipe, Tube, Lubrication, And Railing Fittings). It cross-references to 4 manufacturer part numbers from 3 CAGE codes, including Eaton Aeroquip LLC, Lockheed Martin Corporation, Jednolity Indeks Materialowy - Uniform Material Index; the primary is 4730PL0735828. The federal catalog ties it to the F-16 Fighting Falcon. The unit of issue is EA and the FLIS list price is $908.84.

The U.S. government has bought this item 19 times on record, 1 of them in the last 24 months, most recently on November 6, 2025 at $527.13 each from Lockheed Martin Corporation. The median unit price paid over 36 months is $604.72. 1 solicitation is open right now, the soonest due October 5, 2026 for 1 EA. 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 3 CAGEs

open solicitation, all agencies

government buy in 24 months · median $604.72

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
AE82873E	00624	Eaton Aeroquip LLC	3 · Design control (vendor)	2 · Fully interchangeable
C9692-1	81755	Lockheed Martin Corporation	3 · Design control (vendor)	2 · Fully interchangeable
4730PL0735828	9009H	Jednolity Indeks Materialowy - Uniform Material Index	6	9 · Reference only
C9692	81755	Lockheed Martin Corporation	D	9 · Reference only

Government demand

Open DLA RFQs (DIBBS)

SPE7M326T9308 · 1 EA · due Oct 5, 2026 · N · AMSC L · DIBBS

What the government paid

Date	Vendor	Qty	Unit cost	Buyer	Reference
Nov 6, 2025	Lockheed Martin Corporation 81755	2	$527.13	Dla	SPE7M126F0429
Aug 21, 2024	Aar Supply Chain, Inc 1Y249	2	$682.31	Dla	SPE7M324F0183
Feb 26, 2018	Aar Supply Chain, Inc 1Y249	14	$320.19	Dla	SPE7M318P2801
Nov 21, 2017	Aar Supply Chain, Inc 1Y249	2	$320.19	Dla	SPE7M418V1433
Aug 23, 2017	Franklin Southern Manufacturing LLC 7E0D2	1	$388.00	Dla	SPE7M417V3041
Aug 15, 2017	Franklin Southern Manufacturing LLC 7E0D2	2	$299.00	Dla	SPE7M417V2922
Aug 10, 2016	Aar Supply Chain, Inc 1Y249	1	$300.66	Dla	SPE7M116M8052
Jun 25, 2014	Tnl Sales LLC 1XLG2	1	$306.21	Dla	SPE7M014VD129
Feb 26, 2014	Herber Aircraft Service, Inc. 5S077	1	$258.10	Dla	SPE7M114V7172
Oct 16, 2013	Eastern Aero Supply Inc 5G555	1	$278.10	Dla	SPE7M014V0763
Jul 2, 2013	Eastern Aero Supply Inc 5G555	2	$238.50	Dla	SPE7M013V4314
Sep 7, 2012	Eastern Aero Supply Inc 5G555	1	$238.50	Dla	SPM7M312V6111
Jul 14, 2012	Herber Aircraft Service, Inc. 5S077	1	$238.75	Dla	SPM7M112V8818
May 1, 2012	Satair Usa, Inc. 63Y25	2	$215.00	Dla	SPM7M312V3721
Jul 20, 2011	Eastern Aero Supply Inc 5G555	2	$206.00	Dla	SPM7M311V4840
Jan 28, 2010	Eastern Aero Supply Inc 5G555	1	$210.00	Dla	SPM7M110VA651
Mar 3, 2009	Eastern Aero Supply Inc 5G555	1	$189.90	Dla	SPM7M309V2742
Nov 3, 2008	Herber Aircraft Service, Inc. 5S077	1	$199.00	Dla	SPM7M309V0611
May 6, 2008	Eastern Aero Supply Inc 5G555	1	$199.00	Dla	SPM7M308M4078

Sources: DLA DIBBS procurement history (unit cost), DLA award history, FPDS (all agencies), SAM.gov notices. 19 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 4730PL0735828.

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

DLA management data

FLIS unit price: $908.84
Unit of issue: EA
Acquisition advice: J — Not stocked, central procurement
Source of supply: SMS
Effective: Oct 1, 2025

Item characteristics

Thread Class: 3A
Overall Length: INCHES NOMINAL 1.850
Quick Disconnect Method: ALL ENDS TWIST-LOCK
Quick Disconnect Nominal Size: ALL ENDS INCHES 0.438
End Item Identification: F16C, F16D
Leg Length: INCHES NOMINAL 1.006
Connection Type: FIRST FLUID END CONNECTION THREADED EXTERNAL TUBE
Connection Type: ALL ENDS QUICK DISCONNECT EXTERNAL
Features Provided: SELF-SEALING
Nominal Thread Size: ALL ENDS INCHES 0.438
Seat Angle: DEGREES 37.0
Nominal Outside Diameter Tube Accommodated: ALL ENDS INCHES 0.250
Special Features: BULKHEAD THREAD ON FLUID CONNECTION END
Material: BODY ALUMINUM
Material Document And Classification: BODY FED SPEC SINGLE MATERIAL RESPONSE QQ-A-225 TO 6
Surface Treatment: BODY ANODIZE
Surface Treatment Document And Classification: BODY MIL SPEC SINGLE TREATMENT RESPONSE -IL-A-8625
Thread Series Designator: ALL ENDS UNIFIED NATIONAL JOINT FINE (UNJF)

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.