PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12577Stud,stepped

Grimes Aerospace Company · NSN 5307-01-204-3442 · FSC 5307 · No Item Name Available
Verified by PartsTable
NSN 5307-01-204-3442 — this item is cataloged by the U.S. Government under National Stock Number 5307-01-204-3442. Primary manufacturer part number: 12577.
Features
  • Stud,stepped — FSC 5307
  • 2 verified cross-references
  • Primary manufacturer: Grimes Aerospace Company
Applications
  • General assembly and fastening
  • Structural repair and reinforcement
  • Facility maintenance hardware
General Description

The Stud,stepped, cataloged under National Stock Number 5307-01-204-3442, is classified within Federal Supply Class 5307 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Grimes Aerospace Company. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5307-01-204-3442
Primary Part Number12577
Item NameStud,stepped
FSC / FSG5307 / 53 — No Item Name Available
ManufacturerGrimes Aerospace Company
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5935-00-978-2665 INTERCHANGEABLE
Socket,plug-in Electronic Compon
3010-01-135-220516227 INTERCHANGEABLE
Housing,transmissio
Westerbeke Corporation
3120-01-581-320412577 INTERCHANGEABLE
Bearing,washer,thrust
Brunswick Corp Mercury Marine Div Government Sales
3120-01-604-398212577 INTERCHANGEABLE
Bearing,washer,thrust
Brunswick Corp Dba Mercury Marine Div Mercury Marine
Cross-Reference Index
Part NumberManufacturer
12577 PRIMARY Grimes Aerospace Company (USA)
12577 Aero International, Llc Dba Ams Engineered Solutions (USA)
Related Parts
5935-00-978-2665INTERCHANGEABLE
SOCKET,PLUG-IN ELECTRONIC COMPON
3010-01-135-2205INTERCHANGEABLE
HOUSING,TRANSMISSIO
16227
3120-01-581-3204INTERCHANGEABLE
BEARING,WASHER,THRUST
12577
3120-01-604-3982INTERCHANGEABLE
BEARING,WASHER,THRUST
12577

Frequently Asked Questions

What is NSN 5307-01-204-3442?

NSN 5307-01-204-3442 is a Stud,stepped, manufactured by Grimes Aerospace Company, classified under FSC 5307 (No Item Name Available). Status: active.

What are the part numbers for NSN 5307-01-204-3442?

NSN 5307-01-204-3442 has 2 cross-referenced part numbers: 12577 (Grimes Aerospace Company), 12577 (Aero International, Llc Dba Ams Engineered Solutions).

What NSN replaces 5307-01-204-3442?

There are 4 known substitutes for 5307-01-204-3442: 5935-00-978-2665, 3010-01-135-2205, 3120-01-581-3204 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 12577?

Key specifications for 12577: Special Features: USED ON 6220000514140. 1 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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