Home · FSC 4730 Hose, Pipe, Tube, Lubrication, And Railing Fittings · NSN 4730-00-540-1268

NSN 4730-00-540-1268 — Coupling Half,Quick Disconnect

NIIN 00-540-1268 · unit of issue EA · AAC D (stocked, centrally managed (dla)) · source of supply SMS

Buying rhythm

from 6 government buys since 2023

The government has bought this item about every 3 months (loose, gaps vary ±72%). Last buy Sep 2, 2026. The gaps are too uneven to put a window on the next one. 1 solicitation is open right now.

How well this works: for loose items, "next buy about one typical gap after the last, give or take 136 days" caught the actual next buy 37% of the time across 34,631 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.

NSN 4730-00-540-1268 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 14 manufacturer part numbers from 12 CAGE codes, including Eaton Aeroquip LLC, Eaton Sas, Tmh-Ams; the primary is 015032S1-12D. The unit of issue is EA and the FLIS list price is $559.94.

The U.S. government has bought this item 14 times on record, 6 of them in the last 24 months, most recently on September 22, 2026 at $543.39 each from Hydraulics International, Inc.. The median unit price paid over 36 months is $225.62. 1 solicitation is open right now, the soonest due October 5, 2026 for 43 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.

14

part numbers from 12 CAGEs

1

open solicitation, all agencies

6

government buys in 24 months · median $225.62

0

sellers with confirmed stock

Watch NSN 4730-00-540-1268: an email the morning the government solicits or buys it, or an AD names it. Free.
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Cross-references

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

Part numberCAGEManufacturerReferenceVariation
155S5-12D00624Eaton Aeroquip LLC3 · Design control (vendor)2 · Fully interchangeable
015032S1-12D00624Eaton Aeroquip LLC5 · Secondary reference9 · Reference only
155-S5-12DF6275Eaton Sas5 · Secondary reference2 · Fully interchangeable
15525-12D00624Eaton Aeroquip LLC5 · Secondary reference9 · Reference only
155S512DF1297Tmh-Ams5 · Secondary reference1 · Not fully interchangeable
3991-01782386Jaidinger Mfg Co Inc5 · Secondary reference1 · Not fully interchangeable
44012-12A-N111362Parker-Hannifin Corporation5 · Secondary reference1 · Not fully interchangeable
908190718876Us Army Aviation And Missile Command5 · Secondary reference1 · Not fully interchangeable
HN-L-A-12F-B56529Hydraulics International, Inc.5 · Secondary reference2 · Fully interchangeable
10405343A486GNimikkeistokeskus Ncb Finland69 · Reference only
4730PL10582699009HJednolity Indeks Materialowy - Uniform Material Index69 · Reference only
4730PL16329949009HJednolity Indeks Materialowy - Uniform Material Index69 · Reference only
155S5-12D01276Danfoss Power Solutions Ii, LLCC1 · Not fully interchangeable
216-01023-380378Triumph Aerostructures, LLC Dba Triumph Aerostructures - Vought Integrated Programs DivisionC1 · Not fully interchangeable
68A4-D209-330003Naval Air Systems Command Managed Original Design Activity Not Material/Parts SupplierC1 · Not fully interchangeable

Government demand

Open DLA RFQs (DIBBS)

What the government paid

DateVendorQtyUnit costAmountBuyerReference
Sep 22, 2026Hydraulics International, Inc. 56529193$543.39DlaSPE7M426V5804
Sep 22, 2026Hydraulics International, Inc. 56529$104,874DlaSPE7M426V5804 » Award/Basic Package View
Sep 2, 2026Hydraulics International, Inc. 56529509$554.48DlaSPE7M426P4516
Sep 2, 2026Hydraulics International, Inc. 56529$282,230DlaSPE7M426P4516 » Award/Basic Package View
Aug 6, 2025Hydraulics International, Inc. 5652940$483.36DlaSPE7M425V4911
May 6, 2025Hydraulics International, Inc. 56529293$401.39DlaSPE7M425P4187
May 1, 2024Aar Supply Chain, Inc 1Y2492$225.62DlaSPE7M124F2354
May 1, 2024Aar Supply Chain, Inc 1Y249264$225.62DlaSPE7M124F2355
Feb 29, 2024Aar Supply Chain, Inc 1Y2496$225.62DlaSPE7M124F1694
Feb 29, 2024Aar Supply Chain, Inc 1Y249224$225.62DlaSPE7M124F1695
Nov 22, 2023Aar Supply Chain, Inc 1Y249395$225.62DlaSPE7M124F0714
Nov 22, 2023Aar Supply Chain, Inc 1Y24911$225.62DlaSPE7M124F0713
Nov 22, 2023Aar Supply Chain, Inc 1Y2494$225.62DlaSPE7M124F0712
Nov 22, 2023Aar Supply Chain, Inc 1Y2493$225.62DlaSPE7M124F0711

Sources: DLA DIBBS procurement history (unit cost), DLA award history, FPDS (all agencies), SAM.gov notices. 14 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 015032S1-12D.

Request 015032S1-12D

No account needed. Goes to the sellers who carry this number or its family.

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

DLA management data

FLIS unit price
$559.94
Unit of issue
EA
Acquisition advice
D — Stocked, centrally managed (DLA)
Source of supply
SMS
Effective
Oct 1, 2025

Item characteristics

Thread Class
3A
Overall Length
INCHES NOMINAL 2.766
Quick Disconnect Method
ALL ENDS QUICK LEAD THREAD
Quick Disconnect Nominal Size
ALL ENDS INCHES 1.625
Leg Length
INCHES NOMINAL 0.859
Connection Type
ALL ENDS INTERNAL QUICK DISCONNECT
Connection Type
FIRST FLUID END CONNECTION THREADED EXTERNAL TUBE
Features Provided
SELF-SEALING
Thread Quantity Per Inch
12
Nominal Thread Size
ALL ENDS INCHES 1.062
Seat Angle
DEGREES 37.0
Nominal Outside Diameter Tube Accommodated
ALL ENDS INCHES 0.750
Special Features
COUPLING HALF IS DYED BLUE AND THE NUT IS DYED RED
Material
BODY ALUMINUM ALLOY
Material Document And Classification
BODY FED SPEC SINGLE MATERIAL RESPONSE QQ-A-225 TO 6 ALLOY 2024-T351
Proprietary Characteristics
PACS
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 (UNJ)

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.

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