PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

0995Nut,plain,extended Washer,hexago

Endries International, Inc. Dba Servtonics, an Endries International, Inc. · NSN 5310-01-644-0003 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-644-0003 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-644-0003. Primary manufacturer part number: 0995.
Features
  • Nut,plain,extended Washer,hexago — FSC 5310
  • Thread Series: UNIFIED NATIONAL COARSE (UNC)
  • Nominal Thread Size: 0.250 INCHES IN
  • Width Across Flats: 0.44 INCHES NOMINAL IN
  • Thread Quantity Per Inch: 20
  • Thread Class: 2B
  • Nut Style: HEXAGON
  • Thread Direction: RIGHT-HAND
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Corrosion Resisting Overall construction
General Description

The Nut,plain,extended Washer,hexago, cataloged under National Stock Number 5310-01-644-0003, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Endries International, Inc. Dba Servtonics, an Endries International, Inc.. Government technical data includes 9 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-644-0003
Primary Part Number0995
Item NameNut,plain,extended Washer,hexago
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerEndries International, Inc. Dba Servtonics, an Endries International, Inc.
StatusACTIVE
Thread SeriesUNIFIED NATIONAL COARSE (UNC)
Nominal Thread Size0.250 INCHES IN
Width Across Flats0.44 INCHES NOMINAL IN
Thread Quantity Per Inch20
Thread Class2B
Nut StyleHEXAGON
Thread DirectionRIGHT-HAND
Washer Outside Diameter0.58 INCHES NOMINAL IN
MaterialSTEEL CORROSION RESISTING OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
6750-01-383-2235 INTERCHANGEABLE
Paper,photographic
Cross-Reference Index
Part NumberManufacturer
0995 PRIMARY Endries International, Inc. Dba Servtonics, an Endries International, Inc. (USA)
Related Parts
6750-01-383-2235INTERCHANGEABLE
PAPER,PHOTOGRAPHIC

Frequently Asked Questions

What is NSN 5310-01-644-0003?

NSN 5310-01-644-0003 is a Nut,plain,extended Washer,hexago, manufactured by Endries International, Inc. Dba Servtonics, an Endries International, Inc., classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-644-0003?

NSN 5310-01-644-0003 has 1 cross-referenced part number: 0995 (Endries International, Inc. Dba Servtonics, an Endries International, Inc.).

What NSN replaces 5310-01-644-0003?

There is 1 known substitute for 5310-01-644-0003: 6750-01-383-2235. Verify interchangeability with system specifications before substitution.

What are the specifications of 0995?

Key specifications for 0995: Thread Series: UNIFIED NATIONAL COARSE (UNC); Overall Height: 0.23 INCHES NOMINAL IN; Nominal Thread Size: 0.250 INCHES IN; End Item Identification: 6115015911161. 13 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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