PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

31235Nut,plain,assembled Washer

Barnes Group Inc. Dba Barnes Distribution · NSN 5310-01-149-3065 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-149-3065 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-149-3065. Primary manufacturer part number: 31235.
Features
  • Nut,plain,assembled Washer — FSC 5310
  • Thread Class: 2B
  • Thread Quantity Per Inch: 28
  • Nominal Thread Size: 0.250 INCHES IN
  • Thread Series: UNF
  • Material: STEEL OVERALL
  • Washer Outside Diameter: 0.499 INCHES NOMINAL IN
  • Nut Height: 0.192 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Nut,plain,assembled Washer, cataloged under National Stock Number 5310-01-149-3065, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Barnes Group Inc. Dba Barnes Distribution. Government technical data includes 10 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-149-3065
Primary Part Number31235
Item NameNut,plain,assembled Washer
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerBarnes Group Inc. Dba Barnes Distribution
StatusACTIVE
Thread Class2B
Thread Quantity Per Inch28
Nominal Thread Size0.250 INCHES IN
Thread SeriesUNF
MaterialSTEEL OVERALL
Washer Outside Diameter0.499 INCHES NOMINAL IN
Nut Height0.192 INCHES NOMINAL IN
Nut StyleEXTERNAL TOOTH
Thread DirectionRIGHT-HAND
Width Across Flats0.433 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
9540-00-008-6031 INTERCHANGEABLE
Beam,structural
3120-00-036-673411662341 INTERCHANGEABLE
Bushing,sleeve
U S Army Tank Automotive Command Amsta-Im-Mm
5935-00-072-818813459266-1 INTERCHANGEABLE
Connector,receptacle,electrical
Us Army Aviation and Missile Command
5365-01-251-301131235 INTERCHANGEABLE
Spacer,ring
Pneudraulics, Inc.
6515-01-577-1814312.35 INTERCHANGEABLE
Sleeve,drill,bone Fixation
Depuy Synthes Sales Inc Dba Depuy Synthes Trauma Div Depuy Synthes Sales, Inc., D/b/a Depuy Synthes Trauma
Cross-Reference Index
Part NumberManufacturer
31235 PRIMARY Barnes Group Inc. Dba Barnes Distribution (USA)
Related Parts
9540-00-008-6031INTERCHANGEABLE
BEAM,STRUCTURAL
3120-00-036-6734INTERCHANGEABLE
BUSHING,SLEEVE
11662341
5935-00-072-8188INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
13459266-1
5365-01-251-3011INTERCHANGEABLE
SPACER,RING
31235
6515-01-577-1814INTERCHANGEABLE
SLEEVE,DRILL,BONE FIXATION
312.35

Frequently Asked Questions

What is NSN 5310-01-149-3065?

NSN 5310-01-149-3065 is a Nut,plain,assembled Washer, manufactured by Barnes Group Inc. Dba Barnes Distribution, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-149-3065?

NSN 5310-01-149-3065 has 1 cross-referenced part number: 31235 (Barnes Group Inc. Dba Barnes Distribution).

What NSN replaces 5310-01-149-3065?

There are 5 known substitutes for 5310-01-149-3065: 9540-00-008-6031, 3120-00-036-6734, 5935-00-072-8188 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 31235?

Key specifications for 31235: Overall Height: 0.230 INCHES NOMINAL IN; Thread Class: 2B; Thread Quantity Per Inch: 28; Nominal Thread Size: 0.250 INCHES IN. 11 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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