PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

50-121-4Bolt,internal Wrenching

Bell Textron Inc · NSN 5306-01-542-5908 · FSC 5306 · No Item Name Available
Verified by PartsTable
NSN 5306-01-542-5908 — this item is cataloged by the U.S. Government under National Stock Number 5306-01-542-5908. Primary manufacturer part number: 50-121-4.
Features
  • Bolt,internal Wrenching — FSC 5306
  • Criticality Code Justification: FEAT
  • 3 verified cross-references
  • Primary manufacturer: Bell Textron Inc
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Bolt,internal Wrenching, cataloged under National Stock Number 5306-01-542-5908, is classified within Federal Supply Class 5306 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Bell Textron Inc. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5306-01-542-5908
Primary Part Number50-121-4
Item NameBolt,internal Wrenching
FSC / FSG5306 / 53 — No Item Name Available
ManufacturerBell Textron Inc
StatusACTIVE
Criticality Code JustificationFEAT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5306-01-466-695950-110-4 SUCCESSOR
Bolt,internal Wrenching
Bell Textron Inc
5325-00-807-7968 INTERCHANGEABLE
Ring,retaining
3110-00-904-0897 INTERCHANGEABLE
Bearing,ball,annular
Cross-Reference Index
Part NumberManufacturer
CA21390-4 Howmet Global Fastening Systems Inc. Div Tridair Products (USA)
121503-4 Monadnock Company, the Dba Lisi Aerospace (USA)
50-121-4 PRIMARY Bell Textron Inc (USA)
Related Parts
5306-01-466-6959SUCCESSOR
BOLT,INTERNAL WRENCHING
50-110-4
5325-00-807-7968INTERCHANGEABLE
RING,RETAINING
3110-00-904-0897INTERCHANGEABLE
BEARING,BALL,ANNULAR

Frequently Asked Questions

What is NSN 5306-01-542-5908?

NSN 5306-01-542-5908 is a Bolt,internal Wrenching, manufactured by Bell Textron Inc, classified under FSC 5306 (No Item Name Available). Status: active.

What are the part numbers for NSN 5306-01-542-5908?

NSN 5306-01-542-5908 has 3 cross-referenced part numbers: CA21390-4 (Howmet Global Fastening Systems Inc. Div Tridair Products), 121503-4 (Monadnock Company, the Dba Lisi Aerospace), 50-121-4 (Bell Textron Inc).

What NSN replaces 5306-01-542-5908?

There are 3 known substitutes for 5306-01-542-5908: 5306-01-466-6959, 5325-00-807-7968, 3110-00-904-0897. Verify interchangeability with system specifications before substitution.

What are the specifications of 50-121-4?

Key specifications for 50-121-4: Special Features: ESSENTIAL TO WEAPON SYSTEM PERFORMANCE OR OPERATION, OR THE PRESERVATION OF LIFE OR SAFETY OF OPERATING PERSONNEL; End Item Identification: MV-22 AIRCRAFT; Criticality Code Justification: FEAT; Part Name Assigned by Controlling Agency: BOLT,INTERNAL,WRE. 4 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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