NSN 5305-01-129-8101 · NIIN 011298101 · Part number SC-2021-31
Brunson Instrument Company Dba Brunson Instrument Company · FSC 5305 — Screws · FSG 53 — Hardware and Abrasives · CAGE 66796
Government record, cited
NSN 5305-01-129-8101 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-129-8101. Manufacturer of record part number: SC-2021-31.
Also searched as5305-01-129-8101 ·
5305011298101 ·
NIIN 011298101 ·
01-129-8101 ·
FSC 5305 Screws · CAGE 66796 · SC-2021-31
Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
Identification
NSN: 5305-01-129-8101
NIIN: 011298101
FSC: 5305 — Screws
FSG: 53 — Hardware and Abrasives
Primary part number: SC-2021-31
Manufacturer: Brunson Instrument Company Dba Brunson Instrument Company
General Description
The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-129-8101, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Brunson Instrument Company Dba Brunson Instrument Company. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
5305-01-129-8101
Primary Part Number
SC-2021-31
Item Name
Screw,cap,socket Head
FSC / FSG
5305 / 53 — Screws
Manufacturer
Brunson Instrument Company Dba Brunson Instrument Company
Brunson Instrument Company Dba Brunson Instrument Company (USA)
No interchangeability data on file.
Other items in FSC 5305 — Screws
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5305-00-000-0094
SCREW,CLOSE TOLERANCE
5305-00-000-0094
SCREW,CLOSE TOLERANCE
5305-00-000-0094
SCREW,CLOSE TOLERANCE
5305-00-000-1397
5305-00-000-1397 · Item name not on file
5305-00-000-2625
5305-00-000-2625 · Item name not on file
5305-00-000-3669
5305-00-000-3669 · Item name not on file
5305-00-000-3830
5305-00-000-3830 · Item name not on file
5305-00-000-3831
5305-00-000-3831 · Item name not on file
Frequently Asked Questions
What is NSN 5305-01-129-8101?
NSN 5305-01-129-8101 is a Screw,cap,socket Head, manufactured by Brunson Instrument Company Dba Brunson Instrument Company, classified under FSC 5305, Screws. Status: active.
What part numbers are listed for NSN 5305-01-129-8101?
NSN 5305-01-129-8101 has 1 manufacturer part number on file: SC-2021-31 (Brunson Instrument Company Dba Brunson Instrument Company).
What are the specifications of SC-2021-31?
Key specifications for SC-2021-31: Fastener Length: 0.375 INCHES NOMINAL IN; Head Style: BUTTON; Thread Direction: RIGHT-HAND; Part Name Assigned by Controlling Agency: NAVY SPECIAL PROJECT. 7 specifications are documented in the U.S. Government catalog.
Is NSN 5305-01-129-8101 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.