Home · FSC 5305 Screws · NSN 5305-01-682-0650

NSN 5305-01-682-0650 — Screw,Close Tolerance

NIIN 01-682-0650 · unit of issue EA · AAC Z (insurance item) · source of supply SMS

Used on: F-16 Fighting Falcon · all platforms

NSN 5305-01-682-0650 is the national stock number for a screw,close tolerance in federal supply class 5305 (Screws). It cross-references to 9 manufacturer part numbers from 10 CAGE codes, including Sps Technologies, LLC, Sps Technologies, LLC Dba Aerospace Fasteners Group Div Aerospace - Santa Ana, Huck International, Inc; the primary is 121558-4-A8B. The federal catalog ties it to the F-16 Fighting Falcon. The unit of issue is EA and the FLIS list price is $9.28.

The U.S. government has bought this item 1 time on record, most recently on March 11, 2022 at $6.65 each from H C Merchandisers, Inc.. 1 solicitation is open right now, the soonest due September 29, 2026 for 1,963 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.

part numbers from 10 CAGEs

open solicitation, 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
121558-4-A8B	56878	Sps Technologies, LLC	3 · Design control (vendor)	2 · Fully interchangeable
121558-4-A8B	80539	Sps Technologies, LLC Dba Aerospace Fasteners Group Div Aerospace - Santa Ana	3 · Design control (vendor)	2 · Fully interchangeable
AIC985B4-8	06725	Sps Technologies, LLC	3 · Design control (vendor)	2 · Fully interchangeable
PBF1166B4-8	17446	Huck International, Inc	3 · Design control (vendor)	2 · Fully interchangeable
SF117B4-8	0K6Z0	Saturn Fasteners Inc	3 · Design control (vendor)	2 · Fully interchangeable
VT1694AS4-8	06950	Howmet Global Fastening Systems Inc	3 · Design control (vendor)	2 · Fully interchangeable
VT1694AS4-8	92215	Howmet Global Fastening Systems Inc Div Torrance Operations	3 · Design control (vendor)	2 · Fully interchangeable
AIC985-4-8B	06725	Sps Technologies, LLC	5 · Secondary reference	9 · Reference only
H185B4-8	97928	Huck Intl Inc	5 · Secondary reference	9 · Reference only
PBF1166B4-8	27624	Sps Technologies LLC	5 · Secondary reference	2 · Fully interchangeable
C7985B4-8	81755	Lockheed Martin Corporation	7 · Replaced/superseded	2 · Fully interchangeable
985B4-8	06725	Sps Technologies, LLC	C	1 · Not fully interchangeable

Government demand

Open DLA RFQs (DIBBS)

SPE4A626T31KP · 1,963 EA · due Sep 29, 2026 · Y · AMSC B · DIBBS

What the government paid

Date	Vendor	Qty	Unit cost	Amount	Buyer	Reference
Mar 11, 2022	H C Merchandisers, Inc. 53037	962	$6.65		Dla	SPE4A522P5340

Sources: DLA DIBBS procurement history (unit cost), DLA award history, FPDS (all agencies), SAM.gov notices. 1 buy 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 121558-4-A8B.

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

DLA management data

FLIS unit price: $9.28
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 NOMINAL 0.403
Fastener Length: INCHES NOMINAL 0.903
Head Diameter: INCHES MINIMUM 0.350 AND INCHES MAXIMUM 0.399
Head Height: INCHES NOMINAL 0.063
Grip Diameter: INCHES MINIMUM 0.2485 AND INCHES MAXIMUM 0.2495
Point Length: INCHES NOMINAL 0.045
End Item Identification: F16
Nominal Thread Diameter: INCHES 0.2500
Grip Length: INCHES NOMINAL 0.500
Thread Quantity Per Inch: 28
Minimum Tensile Strength: POUNDS PER SQUARE INCH 4400
Hardness Rating: OVERALL ROCKWELL C MINIMUM 46.0 AND ROCKWELL C MAXIMUM 50.0
Countersink Angle: DEGREES MINIMUM 99.0 AND DEGREES MAXIMUM 101.0
Point Chamfer Angle: DEGREES NOMINAL 45.0
Part Name Assigned By Controlling Agency: BOLT
Special Features: SURFACE TEXTURE PER ANSI/ASME B46.1, CONICAL SURFACE OF HEAD, SHANK, FILLET, AREA AND THREAD ELEMENTS 32 RHR MAX. ALL OTHER SURFACES 125 RHR MAX; FINISH- ION VAPOR DEPOSITED ALUMINM COATING PER MIL-C-
Material: OVERALL STEEL
Material Document And Classification: OVERALL NATIONAL STD SINGLE MATERIAL RESPONSE A-S-6487
Surface Treatment: OVERALL ALUMINUM
Surface Treatment Document And Classification: OVERALL MIL SPEC SINGLE TREATMENT RESPONSE -IL-C-83488 TYE II, CLASS 3
Thread Series Designator: UNIFIED NATIONAL JOINT FINE (UNJF)

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.