PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

49306Fastener,spring Tension,trim

Trw Assemblies and Fasteners Group · NSN 5325-00-281-3963 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-00-281-3963 — this item is cataloged by the U.S. Government under National Stock Number 5325-00-281-3963. Primary manufacturer part number: 49306.
Features
  • Fastener,spring Tension,trim — FSC 5325
  • Fastener Style: TENSION
  • Length From Head to Shoulder: 0.380 INCHES NOMINAL IN
  • Head Height: 0.140 INCHES NOMINAL IN
  • Material: STEEL OVERALL
  • Surface Treatment: PHOSPHATE OVERALL
  • Fastener Outside Diameter: 0.593 INCHES NOMINAL IN
  • Prong Diameter: 0.281 INCHES NOMINAL IN
Applications
  • Mechanical energy storage
  • Vibration dampening
  • Return mechanism operation
  • Applications requiring Steel Overall construction
General Description

The Fastener,spring Tension,trim, cataloged under National Stock Number 5325-00-281-3963, is classified within Federal Supply Class 5325 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Trw Assemblies and Fasteners Group. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, 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
NSN5325-00-281-3963
Primary Part Number49306
Item NameFastener,spring Tension,trim
FSC / FSG5325 / 53 — No Item Name Available
ManufacturerTrw Assemblies and Fasteners Group
StatusACTIVE
Fastener StyleTENSION
Length From Head to Shoulder0.380 INCHES NOMINAL IN
Head Height0.140 INCHES NOMINAL IN
MaterialSTEEL OVERALL
Surface TreatmentPHOSPHATE OVERALL
Fastener Outside Diameter0.593 INCHES NOMINAL IN
Prong Diameter0.281 INCHES NOMINAL IN
Fastener Overall Length0.660 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5330-00-292-161214282 INTERCHANGEABLE
Seal,plain Encased
Skf Usa Inc. Dba Skf Aerospace Sealing Solutions
2990-01-121-518149306 INTERCHANGEABLE
Pipe,drain,turbocha
Sabre Engines Ltd
6635-01-510-871449306 INTERCHANGEABLE
X-Ray Apparatus,radiographic,ind
Science Applications International Corporation Dba Saic
Cross-Reference Index
Part NumberManufacturer
49306 Trw Assemblies and Fasteners Group (USA)
Related Parts
5330-00-292-1612INTERCHANGEABLE
SEAL,PLAIN ENCASED
14282
2990-01-121-5181INTERCHANGEABLE
PIPE,DRAIN,TURBOCHA
49306
6635-01-510-8714INTERCHANGEABLE
X-RAY APPARATUS,RADIOGRAPHIC,IND
49306

Frequently Asked Questions

What is NSN 5325-00-281-3963?

NSN 5325-00-281-3963 is a Fastener,spring Tension,trim, manufactured by Trw Assemblies and Fasteners Group, classified under FSC 5325 (No Item Name Available). Status: active.

What are the part numbers for NSN 5325-00-281-3963?

NSN 5325-00-281-3963 has 1 cross-referenced part number: 49306 (Trw Assemblies and Fasteners Group).

What NSN replaces 5325-00-281-3963?

There are 3 known substitutes for 5325-00-281-3963: 5330-00-292-1612, 2990-01-121-5181, 6635-01-510-8714. Verify interchangeability with system specifications before substitution.

What are the specifications of 49306?

Key specifications for 49306: Fastener Style: TENSION; Length From Head to Shoulder: 0.380 INCHES NOMINAL IN; Head Height: 0.140 INCHES NOMINAL IN; Material: STEEL OVERALL. 8 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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