Home · FSC 5306 Bolts · NSN 5306-00-495-4279

NSN 5306-00-495-4279 — Bolt,Machine

NIIN 00-495-4279 · unit of issue EA · AAC J (not stocked, central procurement) · source of supply SMS

Buying rhythm

from 7 government buys since 2016

The government has bought this item about every 3 months (irregular, gaps vary ±159%). Last buy May 11, 2026. 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 5306-00-495-4279 is the national stock number for a bolt,machine in federal supply class 5306 (Bolts). It cross-references to 1 manufacturer part number from 4 CAGE codes, including Rolls-Royce Corporation, Pacific Sky Supply, Inc., Allison Transmission Inc; the primary is 6871521-11. The unit of issue is EA and the FLIS list price is $16.72.

The U.S. government has bought this item 10 times on record, 3 of them in the last 24 months, most recently on May 11, 2026 at $12.89 each from Noble Supply & Logistics, LLC. The median unit price paid over 36 months is $12.89. 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 number from 4 CAGEs

open solicitations, all agencies

government buys in 24 months · median $12.89

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
6871521-11	63005	Rolls-Royce Corporation	3 · Design control (vendor)	2 · Fully interchangeable
6871521-11	66905	Pacific Sky Supply, Inc.	5 · Secondary reference	2 · Fully interchangeable
6871521-11	73342	Allison Transmission Inc	5 · Secondary reference	9 · Reference only
6871521-11	0UCY9	M.S. Aerospace Inc.	5 · Secondary reference	2 · Fully interchangeable

Government demand

Nothing open right now. Last government buy May 11, 2026. Watch this NSN and we will email you when it is solicited.

What the government paid

Date	Vendor	Qty	Unit cost	Buyer	Reference
May 11, 2026	Noble Supply & Logistics, LLC 1HEN9	1,497	$12.89	Dla	SPE4A526FB33W
Jan 22, 2026	Noble Supply & Logistics, LLC 1HEN9	179	$12.89	Dla	SPE4A526FAY1V
Jan 8, 2026	Noble Supply & Logistics, LLC 1HEN9	229	$12.89	Dla	SPE4A526FAM8E
Nov 15, 2018	M.S. Aerospace Inc. 0UCY9	4,000	$8.65	Dla	SPE5E319V2167
Aug 23, 2018	M.S. Aerospace Inc. 0UCY9	459	$15.00	Dla	SPE5E318V8184
Jul 23, 2018	M.S. Aerospace Inc. 0UCY9	510	$14.50	Dla	SPE5E318V7405
Nov 15, 2016	M.S. Aerospace Inc. 0UCY9	577	$14.45	Dla	SPE5E417V1611
Oct 6, 2016	M.S. Aerospace Inc. 0UCY9	321	$19.35	Dla	SPE5E417V0193
Feb 10, 2014	M.S. Aerospace Inc. 0UCY9	529	$14.45	Dla	SPM5E414M0458
Jan 9, 2014	M.S. Aerospace Inc. 0UCY9	606	$13.80	Dla	SPE5E414V3436

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 6871521-11.

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

DLA management data

FLIS unit price: $16.72
Unit of issue: EA
Acquisition advice: J — Not stocked, central procurement
Source of supply: SMS
Effective: Jul 4, 2026

Item characteristics

Thread Class: 3A
Thread Direction: RIGHT-HAND
Thread Length: INCHES MINIMUM 0.626 AND INCHES MAXIMUM 0.686
Fastener Length: INCHES NOMINAL 0.938
Head Height: INCHES NOMINAL 0.375
Width Between Flats: INCHES MINIMUM 0.367 AND INCHES MAXIMUM 0.375
Extended Washer Diameter: INCHES NOMINAL 0.500
Extended Washer Thickness: INCHES MINIMUM 0.070 AND INCHES MAXIMUM 0.080
Nominal Thread Diameter: INCHES 0.312
Grip Length: INCHES MINIMUM 0.252 AND INCHES MAXIMUM 0.312
Features Provided: FINISHED HEAD
Thread Quantity Per Inch: 24
Hardness Rating: OVERALL ROCKWELL C MINIMUM 32.0 AND ROCKWELL C MAXIMUM 38.0
Surface Finish: GRIP MICROINCHES 63.0
Surface Finish: BEARING SURFACE OF HEAD MICROINCHES 63.0
Material: OVERALL STEEL COMP 630
Material Document And Classification: OVERALL ASSN STD SINGLE MATERIAL RESPONSE A-S 5643
Thread Series Designator: UNF

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.