Home · FSC 4730 Hose, Pipe, Tube, Lubrication, And Railing Fittings · NSN 4730-00-172-0045

NSN 4730-00-172-0045 — Fitting,Lubrication

NIIN 00-172-0045 · unit of issue PG · AAC D (stocked, centrally managed (dla)) · source of supply SMS

NSN 4730-00-172-0045 is the national stock number for a fitting,lubrication in federal supply class 4730 (Hose, Pipe, Tube, Lubrication, And Railing Fittings). It cross-references to 11 manufacturer part numbers from 11 CAGE codes, including Sae International, Stewart-Warner Alemite Corp, Society Of Automotive Engineers Inc; the primary is 1921B. The unit of issue is PG and the FLIS list price is $311.22.

The U.S. government has bought this item 9 times on record, 1 of them in the last 24 months, most recently on February 6, 2026 at $226.85 each from 2lyons Aerospace LLC. The median unit price paid over 36 months is $226.85. 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.

11

part numbers from 11 CAGEs

0

open solicitations, all agencies

1

government buy in 24 months · median $226.85

0

sellers with confirmed stock

Watch NSN 4730-00-172-0045: 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
AS15005-30U583Sae International3 · Design control (vendor)2 · Fully interchangeable
SAE-AS354110U583Sae International3 · Design control (vendor)1 · Not fully interchangeable
1921B95879Stewart-Warner Alemite Corp5 · Secondary reference9 · Reference only
AS1500581343Society Of Automotive Engineers Inc5 · Secondary reference9 · Reference only
AS150050U583Sae International5 · Secondary reference9 · Reference only
AS15005-381343Society Of Automotive Engineers Inc5 · Secondary reference9 · Reference only
AS354110U583Sae International5 · Secondary reference9 · Reference only
AS3541181343Society Of Automotive Engineers Inc5 · Secondary reference9 · Reference only
MILF3541TYPE581349Military Specifications Promulgated By Military Departments/Agencies Under Authority Of Defense Standardization Manual 4120 3-M5 · Secondary reference9 · Reference only
MS15005-322852Spalla Inc5 · Secondary reference9 · Reference only
MS15005-336251Mcneil Ohio Corp5 · Secondary reference9 · Reference only
MS15005-357733Stewart-Warner Corporation5 · Secondary reference9 · Reference only
MS15005-395879Stewart-Warner Alemite Corp5 · Secondary reference9 · Reference only
MS15005-396906Military Standards Promulgated By Military Departments Under Authority Of Defense Standardization Manual 4120 3-M5 · Secondary reference9 · Reference only
2640-299 PIECE96169Electric Boat CorporationC1 · Not fully interchangeable
582-6404648-1253711Naval Sea Systems CommandC1 · Not fully interchangeable
62-38-062696169Electric Boat CorporationC1 · Not fully interchangeable
640-299 PIECE 111710Ametek Inc.C1 · Not fully interchangeable

Government demand

Nothing open right now. Last government buy Feb 6, 2026. Watch this NSN and we will email you when it is solicited.

What the government paid

DateVendorQtyUnit costAmountBuyerReference
Feb 6, 20262lyons Aerospace LLC 8BPE281$226.85DlaSPE7L126P4073
Mar 18, 2022Jamaica Bearings Co. Inc. 1251668$196.54DlaSPE7MX22F109N
Nov 30, 2021Jamaica Bearings Co. Inc. 1251651$196.54DlaSPE7LX22F7543
Nov 30, 2021Jamaica Bearings Co. Inc. 12516163$194.18DlaSPE7LX22F7552
Dec 16, 2017B. & E. Manufacturing Co., Inc. 59680144$195.00DlaSPE7M318P1539
Jun 16, 2016Aerovantage Controls 3F2N41,260$8.00DlaSPE7M316M4234
Feb 24, 2015Aerovantage Controls 3F2N4540$8.00DlaSPE7M315V3404
Dec 15, 2014Aerovantage Controls 3F2N4519$4.10DlaSPE7M315V1045
Apr 7, 2014Express Manufacturing Company 71PS2622$9.79DlaSPE7M014V8767

Sources: DLA DIBBS procurement history (unit cost), DLA award history, FPDS (all agencies), SAM.gov notices. 9 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 1921B.

Request 1921B

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
$311.22
Unit of issue
PG
Acquisition advice
D — Stocked, centrally managed (DLA)
Source of supply
SMS
Effective
Oct 1, 2025

Item characteristics

Shank Length
INCHES NOMINAL 0.312
Screw Thread Series Designator
PTF-SPL SHORT
Assembly Clearance Radius
INCHES MAXIMUM 0.375
Width Across Flats
INCHES NOMINAL 0.438
Thread Quantity Per Inch
27
Nominal Thread Size
INCHES 0.125
Angle
DEGREES 30.0
Special Features
SURFACE OR THROAT LOCATED BALL CHECK VALVE
Height
INCHES MAXIMUM 1.250
Material
OVERALL NICKEL ALLOY
Material Document And Classification
OVERALL FED SPEC SINGLE MATERIAL RESPONSE QQ-N-281 CLASS B

Related stock numbers

Other NSNs filed under the same part numbers.

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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