Home · FSC 5310 Nuts And Washers · NSN 5310-01-400-5855

NSN 5310-01-400-5855 — Nut,Self-Locking,Hexagon

NIIN 01-400-5855 · unit of issue EA · AAC Z (insurance item) · source of supply SMS

Buying rhythm

from 5 government buys since 2017

The government has bought this item about every 2.3 years (regular, gaps vary ±40%). Last buy Sep 10, 2025. If the rhythm holds, the next one falls between Sep 24, 2026 and Oct 21, 2028: a buy is due about now.

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 5310-01-400-5855 is the national stock number for a nut,self-locking,hexagon in federal supply class 5310 (Nuts And Washers). It cross-references to 2 manufacturer part numbers from 1 CAGE code, including Hansome Energy Systems Inc; the primary is A-213-126 FIND 52. The unit of issue is EA and the FLIS list price is $228.78.

The U.S. government has bought this item 12 times on record, 2 of them in the last 24 months, most recently on September 10, 2025 at $151.00 each from Hansome Energy Systems Inc. The median unit price paid over 36 months is $157.50. 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 · median $157.50

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
ESB 009-07	51802	Hansome Energy Systems Inc	3 · Design control (vendor)	2 · Fully interchangeable
A-213-126 FIND 52	51802	Hansome Energy Systems Inc	5 · Secondary reference	2 · Fully interchangeable

Government demand

Nothing open right now. Last government buy Sep 10, 2025. Watch this NSN and we will email you when it is solicited.

What the government paid

Date	Vendor	Qty	Unit cost	Buyer	Reference
Sep 10, 2025	Hansome Energy Systems Inc 51802	56	$151.00	Dla	SPE4A625P0Q49
Nov 5, 2024	Hansome Energy Systems Inc 51802	15	$164.00	Dla	SPE4A625P4396
Jan 19, 2023	Hansome Energy Systems Inc 51802	37	$173.00	Dla	SPE4A623PA398
Apr 23, 2020	Hansome Energy Systems Inc 51802	16	$168.00	Dla	SPE5E820P2632
May 22, 2017	Hansome Energy Systems Inc 51802	10	$165.00	Dla	SPE5E817V6149
Aug 25, 2015	Hansome Energy Systems Inc 51802	10	$153.75	Dla	SPE5E815V7814
Mar 31, 2015	Hansome Energy Systems Inc 51802	5	$153.75	Dla	SPE5E815V4020
Mar 21, 2014	Hansome Energy Systems Inc 51802	5	$149.27	Dla	SPE5E814V3746
Dec 4, 2012	Hansome Energy Systems Inc 51802	2	$140.70	Dla	SPM5E813V0746
Nov 16, 2009	Hansome Energy Systems Inc 51802	2	$128.75	Dla	SPM5AA10V0795
Jan 14, 2009	Hansome Energy Systems Inc 51802	3	$125.00	Dla	SPM5A109V1144
Jul 13, 1998	Hansome Energy Systems Inc 51802	25	$102.00	Dla	SP054098MAS10

Sources: DLA DIBBS procurement history (unit cost), DLA award history, FPDS (all agencies), SAM.gov notices. 12 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 A-213-126 FIND 52.

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

DLA management data

FLIS unit price: $228.78
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.