PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2-25-31Washer,flat

Black Anad Webster Inc Nylogrip Products Div · NSN 5310-00-943-6187 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-943-6187 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-943-6187. Primary manufacturer part number: 2-25-31.
Features
  • Washer,flat — FSC 5310
  • Center Hole Shape Style: ROUND
  • Hole Diameter: 0.084 INCHES MINIMUM AND 0.104 INCHES MAXIMUM IN
  • Material: PLASTIC POLYAMIDE NYLON OVERALL
  • Material Document and Classification: MIL-M-20693 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Cross-Sectional Shape Style: RECTANGULAR
  • Overall Diameter: 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN
  • Peripheral Shape Style: ROUND
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Plastic Polyamide Nylon Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-943-6187, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Black Anad Webster Inc Nylogrip Products Div. 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-943-6187
Primary Part Number2-25-31
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerBlack Anad Webster Inc Nylogrip Products Div
StatusACTIVE
Center Hole Shape StyleROUND
Hole Diameter0.084 INCHES MINIMUM AND 0.104 INCHES MAXIMUM IN
MaterialPLASTIC POLYAMIDE NYLON OVERALL
Material Document and ClassificationMIL-M-20693 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Cross-Sectional Shape StyleRECTANGULAR
Overall Diameter0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN
Peripheral Shape StyleROUND
Thickness0.031 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
2990-00-353-757022531 INTERCHANGEABLE
Lever
Briggs and Stratton Corp
4820-00-786-2322 INTERCHANGEABLE
Valve,safety Relief
2640-00-810-5861402-AH-100-GOVT INTERCHANGEABLE
Valve Core
Dill Air Controls Products Llc Dba Dill Air Controls Products Llc
5310-01-154-939222531 INTERCHANGEABLE
Washer
Barksdale, Inc
5905-01-178-4024 INTERCHANGEABLE
Resistor,variable,wire Wound,non
5330-01-572-050622531 INTERCHANGEABLE
Gasket
Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor
6505-01-592-3837NDC00378-5575-93 INTERCHANGEABLE
Modafinil Tablets
Mylan Pharmaceuticals Inc
5915-01-629-687822531 INTERCHANGEABLE
Filter Subassembly
Forenta Lp
Cross-Reference Index
Part NumberManufacturer
2-25-31 Black Anad Webster Inc Nylogrip Products Div (USA)
Related Parts
2990-00-353-7570INTERCHANGEABLE
LEVER
22531
4820-00-786-2322INTERCHANGEABLE
VALVE,SAFETY RELIEF
2640-00-810-5861INTERCHANGEABLE
VALVE CORE
402-AH-100-GOVT
5310-01-154-9392INTERCHANGEABLE
WASHER
22531
5905-01-178-4024INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,NON
5330-01-572-0506INTERCHANGEABLE
GASKET
22531
6505-01-592-3837INTERCHANGEABLE
MODAFINIL TABLETS
NDC00378-5575-93
5915-01-629-6878INTERCHANGEABLE
FILTER SUBASSEMBLY
22531

Frequently Asked Questions

What is NSN 5310-00-943-6187?

NSN 5310-00-943-6187 is a Washer,flat, manufactured by Black Anad Webster Inc Nylogrip Products Div, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-943-6187?

NSN 5310-00-943-6187 has 1 cross-referenced part number: 2-25-31 (Black Anad Webster Inc Nylogrip Products Div).

What NSN replaces 5310-00-943-6187?

There are 8 known substitutes for 5310-00-943-6187: 2990-00-353-7570, 4820-00-786-2322, 2640-00-810-5861 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2-25-31?

Key specifications for 2-25-31: Center Hole Shape Style: ROUND; Hole Diameter: 0.084 INCHES MINIMUM AND 0.104 INCHES MAXIMUM IN; Material: PLASTIC POLYAMIDE NYLON OVERALL; Material Document and Classification: MIL-M-20693 MIL SPEC SINGLE MATERIAL RESPONSE 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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