Home · FSC 5331 O-Ring · NSN 5331-01-457-8877

NSN 5331-01-457-8877 — O-Ring

NIIN 01-457-8877 · unit of issue EA · AAC Z (insurance item) · source of supply SMS

Buying rhythm

from 4 government buys since 2016

The government has bought this item about every 1.8 years (regular, gaps vary ±57%). Last buy Sep 15, 2022. If the rhythm holds, the next one falls between Sep 4, 2023 and Aug 14, 2025: a buy is overdue by the usual rhythm.

How well this works: for regular items, "next buy about one typical gap after the last, give or take 121 days" caught the actual next buy 42% of the time across 15,552 past buys, against 22% 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 5331-01-457-8877 is the national stock number for an o-ring in federal supply class 5331 (O-Ring). It cross-references to 2 manufacturer part numbers from 1 CAGE code, including Alfa Laval Inc; the primary is 871234905. The unit of issue is EA and the FLIS list price is $234.23.

The U.S. government has bought this item 11 times on record, most recently on September 15, 2022 at $167.91 each from Kampi Components Co 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 1 CAGE

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
871234905	71871	Alfa Laval Inc	3 · Design control (vendor)	2 · Fully interchangeable
A-2874 REV Y PC NO 53	71871	Alfa Laval Inc	5 · Secondary reference	9 · Reference only

Government demand

Nothing open right now. Last government buy Sep 15, 2022. Watch this NSN and we will email you when it is solicited.

What the government paid

Date	Vendor	Qty	Unit cost	Buyer	Reference
Sep 15, 2022	Kampi Components Co Inc 7Z016	54	$167.91	Dla	SPE7L122V9518
May 2, 2019	Sarco Inc 0ABX5	60	$105.00	Dla	SPE5E819V5974
Sep 6, 2018	Pioneer Industries, LLC 66200	50	$99.40	Dla	SPE5E818V9761
Nov 18, 2016	Kampi Components Co Inc 7Z016	46	$95.28	Dla	SPE5E817P0758
Mar 23, 2015	Kampi Components Co Inc 7Z016	35	$93.09	Dla	SPE5E815M2483
Oct 15, 2012	Pioneer Industries, LLC 66200	39	$38.86	Dla	SPM5E813V0145
May 11, 2010	Pioneer Industries, LLC 66200	56	$39.12	Dla	SPM5M210V2896
Apr 10, 2008	Pioneer Industries, LLC 66200	59	$34.96	Dla	SPM5M208V2082
Mar 21, 2008	Kampi Components Co Inc 7Z016	37	$43.81	Dla	SPM5M208M1374
Jun 7, 2005	Milspareco, Inc. 1VUZ0	80	$30.51	Dla	SPM56005V4525
Sep 16, 1999	Alfa Laval Inc 71871	15	$31.80	Dla	SP054099MLS73

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 871234905.

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

DLA management data

FLIS unit price: $234.23
Unit of issue: EA
Acquisition advice: Z — Insurance item
Source of supply: SMS
Effective: Oct 1, 2025

Item characteristics

Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
Material Document And Classification: MIL SPEC SINGLE MATERIAL RESPONSE -IL-R-2765
Proprietary Characteristics: PACS

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.