Home · FSC 5310 Nuts And Washers · NSN 5310-01-566-1004

NSN 5310-01-566-1004 — Washer,Flat

NIIN 01-566-1004 · unit of issue EA · AAC Z (insurance item) · source of supply SMS

Buying rhythm

from 6 government buys since 2017

The government has bought this item about every 2 months (irregular, gaps vary ±135%). Last buy Dec 30, 2022. The gaps are too uneven to put a window on the next one.

How well this works: for irregular items, "next buy about one typical gap after the last, give or take 152 days" caught the actual next buy 31% of the time across 21,749 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 5310-01-566-1004 is the national stock number for a washer,flat in federal supply class 5310 (Nuts And Washers). It cross-references to 2 manufacturer part numbers from 2 CAGE codes, including Fascan International, Inc., Mcmaster-Carr Supply Co; the primary is 98180A160. The unit of issue is EA and the FLIS list price is $0.95.

The U.S. government has bought this item 13 times on record, most recently on December 30, 2022 at $0.68 each from Allied Tools, 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 2 CAGEs

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
MIL-001-430	0UJB5	Fascan International, Inc.	3 · Design control (vendor)	2 · Fully interchangeable
98180A160	39428	Mcmaster-Carr Supply Co	5 · Secondary reference	2 · Fully interchangeable

Government demand

Nothing open right now. Last government buy Dec 30, 2022. Watch this NSN and we will email you when it is solicited.

What the government paid

Date	Vendor	Qty	Unit cost	Buyer	Reference
Dec 30, 2022	Allied Tools, Inc 3DZM1	1,981	$0.68	Dla	SPE4A623P8116
Sep 26, 2018	Maverick Components 5G0M5	4,242	$0.53	Dla	SPE5E718P5184
Sep 5, 2017	Maverick Components 5G0M5	399	$0.54	Dla	SPE5E717V5547
Jul 5, 2017	Maverick Components 5G0M5	604	$0.48	Dla	SPE5E717V4590
Apr 24, 2017	Szy Holdings, LLC 0AG09	600	$0.52	Dla	SPE5E717P2841
Feb 21, 2017	Maverick Components 5G0M5	769	$0.49	Dla	SPE5E717P1878
Apr 20, 2016	Production Components, Inc. 33YL7	325	$0.50	Dla	SPE5E016V2304
Mar 4, 2016	Szy Holdings, LLC 0AG09	760	$0.52	Dla	SPE5E016V1757
Sep 22, 2014	Szy Holdings, LLC 0AG09	1,516	$0.33	Dla	SPE5E714V6432
Aug 22, 2014	Szy Holdings, LLC 0AG09	500	$0.33	Dla	SPE5E714V5967
Jul 31, 2014	Szy Holdings, LLC 0AG09	150	$0.33	Dla	SPE5E714V5357
Jun 13, 2014	Longhorn Regional Service Center LLC Dba Kyrish Government Group 4GK47	2	$6.75	Dla	SPE5E714M1802
Apr 23, 2014	Panther Machining And Hardware LLC 71G41	12	$0.55	Dla	SPE5E714M1212

Sources: DLA DIBBS procurement history (unit cost), DLA award history, FPDS (all agencies), SAM.gov notices. 13 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 98180A160.

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

DLA management data

FLIS unit price: $0.95
Unit of issue: EA
Acquisition advice: Z — Insurance item
Source of supply: SMS
Effective: Oct 1, 2025

Item characteristics

Hole Diameter: INCHES NOMINAL 0.687
Thickness: INCHES MINIMUM 0.097 AND INCHES MAXIMUM 0.121
Overall Diameter: INCHES NOMINAL 1.313
End Item Identification: 2590-01-558-3273 INTERROGATION ARM ASSEMBLY; LOGISTICS SUPPORT VESSEL
Hardness Rating: ROCKWELL C MINIMUM 38.0 AND ROCKWELL C MAXIMUM 45.0
Part Name Assigned By Controlling Agency: WASHER
Color: OVERALL YELLOW
Material: OVERALL STEEL
Surface Treatment: OVERALL CHROMATE ZINC

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.