PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

9876Washer,flat

Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney · NSN 5310-00-637-2083 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-637-2083 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-637-2083. Primary manufacturer part number: 9876.
Features
  • Washer,flat — FSC 5310
  • Thickness: 0.084 INCHES MINIMUM AND 0.104 INCHES MAXIMUM IN
  • Center Hole Shape Style: ROUND
  • Material Document and Classification: AMS 5120 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Material: STEEL COMP 1074 OVERALL
  • Overall Diameter: 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN
  • Hardness Rating: 40.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM
  • Surface Treatment Document and Classification: AMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 1074 Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-637-2083, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, 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
NSN5310-00-637-2083
Primary Part Number9876
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerRtx Corporation Dba Pratt & Whitney Div Pratt &whitney
StatusACTIVE
Thickness0.084 INCHES MINIMUM AND 0.104 INCHES MAXIMUM IN
Center Hole Shape StyleROUND
Material Document and ClassificationAMS 5120 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MaterialSTEEL COMP 1074 OVERALL
Overall Diameter0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN
Hardness Rating40.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM
Surface Treatment Document and ClassificationAMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
Hole Diameter0.381 INCHES MINIMUM AND 0.401 INCHES MAXIMUM IN
Peripheral Shape StyleROUND
Cross-Sectional Shape StyleRECTANGULAR
Surface TreatmentCADMIUM OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
3110-00-554-3275P200KZ3FS50000 INTERCHANGEABLE
Bearing,ball,annular
Timken Co Div the Timken Company
5330-00-869-42269876 INTERCHANGEABLE
Seal,plain Encased
Skf Usa Inc. Dba Skf Aerospace Sealing Solutions
7045-01-050-8815 INTERCHANGEABLE
Disk Pack
6145-01-266-08549876 INTERCHANGEABLE
Cable,special Purpose,electrical
Belden Wire and Cable Co Wire and Cable Office
6105-01-537-01059876 INTERCHANGEABLE
Motor,alternating Current
Oberdorfer Pumps Inc
Cross-Reference Index
Part NumberManufacturer
QAP00385 Defense Logistics Agency Dba Defense Supply Center Philadelphia (USA)
9876 PRIMARY Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
9876 Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. (CAN)
Related Parts
3110-00-554-3275INTERCHANGEABLE
BEARING,BALL,ANNULAR
P200KZ3FS50000
5330-00-869-4226INTERCHANGEABLE
SEAL,PLAIN ENCASED
9876
7045-01-050-8815INTERCHANGEABLE
DISK PACK
6145-01-266-0854INTERCHANGEABLE
CABLE,SPECIAL PURPOSE,ELECTRICAL
9876
6105-01-537-0105INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT
9876

Frequently Asked Questions

What is NSN 5310-00-637-2083?

NSN 5310-00-637-2083 is a Washer,flat, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-637-2083?

NSN 5310-00-637-2083 has 3 cross-referenced part numbers: QAP00385 (Defense Logistics Agency Dba Defense Supply Center Philadelphia), 9876 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 9876 (Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.).

What NSN replaces 5310-00-637-2083?

There are 5 known substitutes for 5310-00-637-2083: 3110-00-554-3275, 5330-00-869-4226, 7045-01-050-8815 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 9876?

Key specifications for 9876: Thickness: 0.084 INCHES MINIMUM AND 0.104 INCHES MAXIMUM IN; Center Hole Shape Style: ROUND; Special Features: ONE OUTSIDE EDGE TO BE ROUNDED WITH 1/16 INCH RADIUS IN; Material Document and Classification: AMS 5120 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 12 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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