Home · FSC 5305 Screws · NSN 5305-01-133-3856

NSN 5305-01-133-3856 — Screw,Machine

NIIN 01-133-3856 · unit of issue EA · AAC Z (insurance item) · source of supply SMS

Buying rhythm

from 5 government buys since 2016

The government has bought this item about every 2.2 years (loose, gaps vary ±79%). Last buy Sep 16, 2026. The gaps are too uneven to put a window on the next one.

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 35,590 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 5305-01-133-3856 is the national stock number for a screw,machine in federal supply class 5305 (Screws). It cross-references to 2 manufacturer part numbers from 2 CAGE codes, including National Aerospace Standards Committee Aerospace Industries Association Of America Inc Not For Rfq Or Solicitation Use, The Boeing Company; the primary is BACS12CB3-39. The unit of issue is EA and the FLIS list price is $1.24.

The U.S. government has bought this item 9 times on record, 1 of them in the last 24 months, most recently on September 16, 2026 for $662 from Wesco Aircraft Hardware Corp.. 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 buy 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
NAS1801-3-39	80205	National Aerospace Standards Committee Aerospace Industries Association Of America Inc Not For Rfq Or Solicitation Use	3 · Design control (vendor)	2 · Fully interchangeable
BACS12CB3-39	81205	The Boeing Company	C	1 · Not fully interchangeable

Government demand

Nothing open right now. Last government buy Sep 16, 2026. Watch this NSN and we will email you when it is solicited.

What the government paid

Date	Vendor	Qty	Unit cost	Amount	Buyer	Reference
Sep 16, 2026	Wesco Aircraft Hardware Corp. 1V757			$662	Dla	SPE4A626P0U58 » Award/Basic Package View
Jan 26, 2023	Standard Aero Parts, Inc 1DN91	561	$0.89		Dla	SPE4A623PB359
Jan 31, 2018	Defense Support Services, Inc. 1L3U4	516	$0.90		Dla	SPE5EY18F5080
May 31, 2017	Standard Aero Parts, Inc 1DN91	417	$0.89		Dla	SPE5E217V7816
Dec 1, 2016	Boeing Distribution Services X, Inc. 2N935	418	$1.15		Dla	SPM5EY12D00020551
Jul 30, 2015	Boeing Distribution Services X, Inc. 2N935	468	$1.21		Dla	SPE5E215MQ488
May 25, 2007	Standard Aero Parts, Inc 1DN91	277	$4.56		Dla	SPM5A407V0815
May 1, 2007	Be Aerospace Consumables Management Dba Consumables Solutions Div Consumables Solutions 1RDZ1	77	$5.39		Dla	SPM5A407V0752
Jul 7, 1998	Apollo Aerospace Components LLC 00360	700	$3.35		Dla	SP050098AA8802294

Sources: DLA DIBBS procurement history (unit cost), DLA award history, FPDS (all agencies), SAM.gov notices. 9 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 BACS12CB3-39.

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

DLA management data

FLIS unit price: $1.24
Unit of issue: EA
Acquisition advice: Z — Insurance item
Source of supply: SMS
Effective: Oct 1, 2025

Item characteristics

Thread Class: 3A
Thread Direction: RIGHT-HAND
Thread Length: INCHES MINIMUM 1.750
Fastener Length: INCHES MINIMUM 2.422 AND INCHES MAXIMUM 2.469
Head Height: INCHES MINIMUM 0.105 AND INCHES MAXIMUM 0.120
Width Between Flats: INCHES MINIMUM 0.305 AND INCHES MAXIMUM 0.314
Nominal Thread Diameter: INCHES 0.190
Thread Quantity Per Inch: 32
Minimum Tensile Strength: POUNDS PER SQUARE INCH 160000
Hardness Rating: ROCKWELL C MINIMUM 36.0 AND ROCKWELL C MAXIMUM 40.0
Screw Material: STEEL COMP E4340 OR STEEL COMP 8740
Screw Material Document And Classification: MIL SPEC 1ST MATERIAL RESPONSE -IL-S-5000 OR MIL SPEC 2ND MATERIAL RESPONSE -IL-S-6049 OR ASSN STD 2ND MATERIAL RESPONSE A-S6322
Screw Surface Treatment: CADMIUM AND CHROMATE
Screw Surface Treatment Document And Classification: FED SPEC SINGLE TREATMENT RESPONSE QQ--416 TYE 2 CLASS 2
Thread Series Designator: UNIFIED NATIONAL JOINT FINE (UNJF)
Specification/Standard Data: PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD 80205-NAS1801

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.