PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1776-8Washer,flat

Trostel Albert Packing Ltd · NSN 5310-00-186-1380 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-186-1380 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-186-1380. Primary manufacturer part number: 1776-8.
Features
  • Washer,flat — FSC 5310
  • Hole Diameter: 0.633 INCHES MINIMUM AND 0.647 INCHES MAXIMUM IN
  • Center Hole Shape Style: ROUND
  • Material: LEATHER OVERALL
  • Cross-Sectional Shape Style: RECTANGULAR
  • Peripheral Shape Style: ROUND
  • Thickness: 0.084 INCHES MINIMUM AND 0.104 INCHES MAXIMUM IN
  • Minimum Tensile Strength: 2500 POUNDS PER SQUARE INCH LBS
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Leather Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-186-1380, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Trostel Albert Packing Ltd. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 15 commercial cross-references from 14 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-186-1380
Primary Part Number1776-8
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerTrostel Albert Packing Ltd
StatusCANCELLED
Hole Diameter0.633 INCHES MINIMUM AND 0.647 INCHES MAXIMUM IN
Center Hole Shape StyleROUND
MaterialLEATHER OVERALL
Cross-Sectional Shape StyleRECTANGULAR
Peripheral Shape StyleROUND
Thickness0.084 INCHES MINIMUM AND 0.104 INCHES MAXIMUM IN
Minimum Tensile Strength2500 POUNDS PER SQUARE INCH LBS
Overall Diameter0.890 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 11
5950-00-041-6554160164-1 INTERCHANGEABLE
Transformer,power
L3harris Technologies, Inc Div Space & Airborne Systems
5360-00-164-3090 INTERCHANGEABLE
Spring,helical,extension
4730-00-254-62254-4 010202B INTERCHANGEABLE
Elbow,pipe to Tube
Sae International Dba Sae International
3950-00-416-78085557091 INTERCHANGEABLE
Carrier,bearing
Continental Emsco Co Skagit Products Div
5935-00-443-2910 INTERCHANGEABLE
Retainer,electrical Connector
5995-00-492-433612838 INTERCHANGEABLE
Lead Assembly,electrical
The Gorman-Rupp Company Div Gorman-Rupp
5962-01-075-8627932820-217 INTERCHANGEABLE
Microcircuit,memory
Raytheon Company Dba Raytheon
6695-01-263-2266484827 INTERCHANGEABLE
Indicator,symbol Indicating
Simmonds Precision Products Inc
5905-01-344-01151776-8 INTERCHANGEABLE
Resistor Network,fixed,film
Caddock Electronics Inc.
5340-01-432-7685 INTERCHANGEABLE
Cover,access
Cross-Reference Index
Part NumberManufacturer
1776-8 Trostel Albert Packing Ltd (USA)
5310PL0150743 Jednolity Indeks Materialowy - Uniform Material Index (POL)
B-FF-8 Parker-Hannifin Corp Div O-Ring Division (USA)
1376-18-127 Aviation Spares and Repairs Ltd (GBR)
MS28777-8 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
484 827 Piper Industrial Manufacturing Company, Llc Div Piper Industrial Manufacturing Company (USA)
AN6291-8 Aeronautical Standards Group Dept of Navy and Air Force (USA)
5310001861380 E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales
5310001861380 E.c.a Etablissement Centrald'approvisionnement Des Forces Armee
282-2100-802157REVAPCF4 Naval Ship Systems Command (USA)
1283-8 Searle Leather and Packing Co (USA)
484784 Piper Industrial Manufacturing Company, Llc Div Piper Industrial Manufacturing Company (USA)
1376-18-127 Leonardo S.p.a. - Electronics Division - Defence Business Area (ITA)
2216LS-8 Houghton Intl Inc (USA)
XLLM212-8 Excelsior, Inc. (USA)
Related Parts
5950-00-041-6554INTERCHANGEABLE
TRANSFORMER,POWER
160164-1
5360-00-164-3090INTERCHANGEABLE
SPRING,HELICAL,EXTENSION
4730-00-254-6225INTERCHANGEABLE
ELBOW,PIPE TO TUBE
4-4 010202B
3950-00-416-7808INTERCHANGEABLE
CARRIER,BEARING
5557091
5935-00-443-2910INTERCHANGEABLE
RETAINER,ELECTRICAL CONNECTOR
5995-00-492-4336INTERCHANGEABLE
LEAD ASSEMBLY,ELECTRICAL
12838
5962-01-075-8627INTERCHANGEABLE
MICROCIRCUIT,MEMORY
932820-217
6695-01-263-2266INTERCHANGEABLE
INDICATOR,SYMBOL INDICATING
484827
5905-01-344-0115INTERCHANGEABLE
RESISTOR NETWORK,FIXED,FILM
1776-8
5340-01-432-7685INTERCHANGEABLE
COVER,ACCESS
4510-01-709-0134INTERCHANGEABLE
PARTS KIT,WATER CLOSET
12838

Frequently Asked Questions

What is NSN 5310-00-186-1380?

NSN 5310-00-186-1380 is a Washer,flat, manufactured by Trostel Albert Packing Ltd, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-186-1380?

NSN 5310-00-186-1380 has 15 cross-referenced part numbers: 1776-8 (Trostel Albert Packing Ltd), 5310PL0150743 (Jednolity Indeks Materialowy - Uniform Material Index), B-FF-8 (Parker-Hannifin Corp Div O-Ring Division), 1376-18-127 (Aviation Spares and Repairs Ltd), MS28777-8 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M) and 10 more.

What NSN replaces 5310-00-186-1380?

There are 11 known substitutes for 5310-00-186-1380: 5950-00-041-6554, 5360-00-164-3090, 4730-00-254-6225 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1776-8?

Key specifications for 1776-8: Hole Diameter: 0.633 INCHES MINIMUM AND 0.647 INCHES MAXIMUM IN; Center Hole Shape Style: ROUND; Material: LEATHER OVERALL; Cross-Sectional Shape Style: RECTANGULAR. 8 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-186-1380 still in active supply?

NSN 5310-00-186-1380 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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