Home · FSC 5310 Nuts And Washers · NSN 5310-00-244-4002
NSN 5310-00-244-4002 — Washer,Spring Tension
NIIN 00-244-4002 · unit of issue EA · AAC D (stocked, centrally managed (dla)) · source of supply SMS
Buying rhythm
from 4 government buys since 2016
The government has bought this item about every 1.6 years (loose, gaps vary ±84%). Last buy Aug 4, 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 5310-00-244-4002 is the national stock number for a washer,spring tension in federal supply class 5310 (Nuts And Washers). It cross-references to 4 manufacturer part numbers from 6 CAGE codes, including The Boeing Company, Honeywell International Inc., Bearing Engineers Inc; the primary is 532157-13. The unit of issue is EA and the FLIS list price is $5.51.
The U.S. government has bought this item 11 times on record, 1 of them in the last 24 months, most recently on August 4, 2026 at $309.11 each from The Boeing Company. The median unit price paid over 36 months is $309.11. 2 solicitations are open right now, the soonest due September 29, 2026 for 454 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.
4
part numbers from 6 CAGEs
2
open solicitations, all agencies
1
government buy in 24 months · median $309.11
0
sellers with confirmed stock
Cross-references
Part numbers filed against this stock number, with the manufacturer (CAGE) and the FLIS reference codes.
| Part number | CAGE | Manufacturer | Reference | Variation |
|---|---|---|---|---|
| HS4105-134 | 8V613 | The Boeing Company | 3 · Design control (vendor) | 2 · Fully interchangeable |
| 532157-13 | 70210 | Honeywell International Inc. | 5 · Secondary reference | 9 · Reference only |
| BS50-25-4-2-5 | 05341 | Bearing Engineers Inc | 5 · Secondary reference | 9 · Reference only |
| HS4105-134 | 02731 | Mcdonnell Douglas Helicopter Co Inc | 5 · Secondary reference | 9 · Reference only |
| HS4105-134 | 05341 | Bearing Engineers Inc | 5 · Secondary reference | 2 · Fully interchangeable |
| OSS4105-134 | 8KP69 | Northrop Grumman Systems Corp | 5 · Secondary reference | 2 · Fully interchangeable |
| OSS4105-134 | 1YQE8 | Alliant Techsystems Operations LLC | 5 · Secondary reference | 9 · Reference only |
Government demand
Open DLA RFQs (DIBBS)
- SPE4A626T34WV · 454 EA · due Sep 29, 2026 · Y · AMSC C · DIBBS
Open notices, other agencies (SAM.gov)
- Defense Logistics Agency · Dla Aviation · WASHER,SPRING TENSION · due Sep 29, 2026 · Combined Synopsis/Solicitation
What the government paid
| Date | Vendor | Qty | Unit cost | Amount | Buyer | Reference |
|---|---|---|---|---|---|---|
| Aug 4, 2026 | The Boeing Company 48T42 | 647 | $309.11 | Dla | SPE4A626F204B | |
| Jul 24, 2019 | Value Industries, Inc. 0KT99 | 1,680 | $3.75 | Dla | SPE5E719V4899 | |
| Jun 22, 2018 | Value Industries, Inc. 0KT99 | 1,967 | $3.82 | Dla | SPE5E718P3744 | |
| Nov 29, 2016 | Value Industries, Inc. 0KT99 | 1,418 | $4.10 | Dla | SPE5E717P0878 | |
| Mar 5, 2013 | Alliant Techsystems Operations LLC 1PYT8 | 2,106 | $1.77 | Dla | SPM5E713M1355 | |
| Jun 10, 2010 | Value Industries, Inc. 0KT99 | 1,954 | $5.54 | Dla | SPM5AA10V4362 | |
| Nov 18, 2007 | Value Industries, Inc. 0KT99 | 1,113 | $6.24 | Dla | SPM5A708V0081 | |
| Aug 22, 2007 | Value Industries, Inc. 0KT99 | 1,308 | $6.44 | Dla | SPM5A707V1090 | |
| Mar 14, 2007 | Value Industries, Inc. 0KT99 | 1,025 | $6.90 | Dla | SPM5A707M1364 | |
| Jun 23, 2006 | Ufc Aerospace Corp. 5M696 | 1,087 | $7.50 | Dla | SPM5A706M1620 | |
| Nov 21, 2004 | Supersonic Services Inc 0UCW1 | 580 | $1.59 | Dla | SP054005M3222 |
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 532157-13.
Listings appear here only while the seller has confirmed them within 60 days. Sellers: list this part free.
DLA management data
- FLIS unit price
- $5.51
- Unit of issue
- EA
- Acquisition advice
- D — Stocked, centrally managed (DLA)
- Source of supply
- SMS
- Effective
- Oct 1, 2025
Item characteristics
- Hole Diameter
- INCHES MINIMUM 0.995 AND INCHES MAXIMUM 1.005
- Outside Diameter
- INCHES MINIMUM 1.964 AND INCHES MAXIMUM 1.974
- Overall Height
- INCHES MINIMUM 0.1505 AND INCHES MAXIMUM 0.1565
- Material Thickness
- INCHES MINIMUM 0.0981 AND INCHES MAXIMUM 0.0985
- Hardness Rating
- ROCKWELL C MINIMUM 46.0 AND ROCKWELL C MAXIMUM 50.0
- Heat Treatment
- AS FABRICATED
- Color
- OVERALL BLUE
- Material
- OVERALL STEEL COMP 1095
- Material Document And Classification
- OVERALL MIL SPEC SINGLE MATERIAL RESPONSE -IL-S-7947
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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