Home · FSC 4310 Compressors And Vacuum Pumps · NSN 4310-01-031-8351

NSN 4310-01-031-8351 — Ring,Piston

NIIN 01-031-8351 · unit of issue EA · AAC Z (insurance item) · source of supply SMS

NSN 4310-01-031-8351 is the national stock number for a ring,piston in federal supply class 4310 (Compressors And Vacuum Pumps). It cross-references to 2 manufacturer part numbers from 4 CAGE codes, including Navair And Navsea Managed Original Design Activity Dwg Not Material/Parts Supplier, Hastings Manufacturing Co, Spx Corp; the primary is 2505431. The unit of issue is EA and the FLIS list price is $5.57.

The U.S. government has bought this item 10 times on record, 1 of them in the last 24 months, most recently on January 8, 2025 at $4.14 each from Ordnance Technology Service, Inc.. The median unit price paid over 36 months is $4.14. 1 solicitation is open right now, the soonest due October 5, 2026 for 9,170 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 4 CAGEs

open solicitation, all agencies

government buy in 24 months · median $4.14

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
2505431	10001	Navair And Navsea Managed Original Design Activity Dwg Not Material/Parts Supplier	1 · Design control	2 · Fully interchangeable
2505431	74069	Hastings Manufacturing Co	3 · Design control (vendor)	2 · Fully interchangeable
C-10-148	53781	Spx Corp	3 · Design control (vendor)	9 · Reference only
C-10-148	45225	Bosch Automotive Service Solutions Inc.	5 · Secondary reference	9 · Reference only

Government demand

Open DLA RFQs (DIBBS)

SPE7M126T381U · 9,170 EA · due Oct 5, 2026 · Y · AMSC B · DIBBS

What the government paid

Date	Vendor	Qty	Unit cost	Buyer	Reference
Jan 8, 2025	Ordnance Technology Service, Inc. 0F1X1	3,554	$4.14	Dla	SPE7M125P2797
Mar 30, 2023	Ordnance Technology Service, Inc. 0F1X1	1,418	$3.28	Dla	SPE7M023P2627
Nov 6, 2020	Ordnance Technology Service, Inc. 0F1X1	1,945	$3.09	Dla	SPE7M521P0908
Mar 8, 2017	Ordnance Technology Service, Inc. 0F1X1	4,741	$2.75	Dla	SPE7M117P4561
May 17, 2016	Ordnance Technology Service, Inc. 0F1X1	3,914	$2.45	Dla	SPE7M116M5506
Mar 18, 2015	Ordnance Technology Service, Inc. 0F1X1	1,977	$2.45	Dla	SPE7M115M4509
Mar 19, 2009	Kampi Components Co Inc 7Z016	18,700	$1.92	Dla	SPM7M309M3534
Dec 24, 2008	Kampi Components Co Inc 7Z016	541	$1.38	Dla	SPM7M309M1740
Apr 11, 2006	Kampi Components Co Inc 7Z016	4,138	$1.38	Dla	SPM7M306M3935
Mar 15, 1999	Kampi Components Co Inc 7Z016	2,827	$0.91	Dla	SP076099MJ703

Sources: DLA DIBBS procurement history (unit cost), DLA award history, FPDS (all agencies), SAM.gov notices. 10 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 2505431.

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

DLA management data

FLIS unit price: $5.57
Unit of issue: EA
Acquisition advice: Z — Insurance item
Source of supply: SMS
Effective: Oct 1, 2025

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.