PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

11761Washer,flat

Mission Systems Orchard Park Inc · NSN 5310-00-904-5699 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-904-5699 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-904-5699. Primary manufacturer part number: 11761.
Features
  • Washer,flat — FSC 5310
  • Material: RUBBER SYNTHETIC OVERALL
  • Thickness: 0.021 INCHES MINIMUM AND 0.041 INCHES MAXIMUM IN
  • Peripheral Shape Style: ROUND
  • Hardness Rating: 70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM
  • Overall Diameter: 0.537 INCHES MINIMUM AND 0.557 INCHES MAXIMUM IN
  • Center Hole Shape Style: ROUND
  • Cross-Sectional Shape Style: RECTANGULAR
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Rubber Synthetic Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-904-5699, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Mission Systems Orchard Park Inc. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-904-5699
Primary Part Number11761
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerMission Systems Orchard Park Inc
StatusACTIVE
MaterialRUBBER SYNTHETIC OVERALL
Thickness0.021 INCHES MINIMUM AND 0.041 INCHES MAXIMUM IN
Peripheral Shape StyleROUND
Hardness Rating70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM
Overall Diameter0.537 INCHES MINIMUM AND 0.557 INCHES MAXIMUM IN
Center Hole Shape StyleROUND
Cross-Sectional Shape StyleRECTANGULAR
Hole Diameter0.271 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
6730-00-356-5898 INTERCHANGEABLE
Guide,film,motion P
5340-00-455-03265S909 INTERCHANGEABLE
Connector,rod End
Caterpillar Inc Div Caterpillar Defense
5950-00-706-8261 INTERCHANGEABLE
Coil,radio Frequency
5330-01-003-42691625674-1 INTERCHANGEABLE
Gasket
Mission Systems Davenport Inc.
4820-01-223-0580 INTERCHANGEABLE
Valve Assembly,manifold
5360-01-231-041911761 INTERCHANGEABLE
Spring Detent
O F Mossberg & Sons Inc
6530-01-304-200711761 INTERCHANGEABLE
Pad,pressure Point,physicotherap
Bio Clinic Corp
5310-01-342-534511761 INTERCHANGEABLE
Nut,plain,hexagon
Paccar Winch Inc Dba Paccar Winch Division
5340-01-355-698511-761 INTERCHANGEABLE
Boot,dust and Moisture Seal
Pollak Joseph Corp
6515-01-574-179004.305.012 INTERCHANGEABLE
Screw,bone,maxillofacial Surgery
Depuy Synthes Sales Inc Dba Depuy Synthes Trauma Div Depuy Synthes Sales, Inc., D/b/a Depuy Synthes Trauma
Cross-Reference Index
Part NumberManufacturer
11761 PRIMARY Mission Systems Orchard Park Inc (USA)
11761 Ingersoll-Rand Company Dba Ingersoll-Rand (USA)
Related Parts
6730-00-356-5898INTERCHANGEABLE
GUIDE,FILM,MOTION P
5340-00-455-0326INTERCHANGEABLE
CONNECTOR,ROD END
5S909
5950-00-706-8261INTERCHANGEABLE
COIL,RADIO FREQUENCY
5330-01-003-4269INTERCHANGEABLE
GASKET
1625674-1
4820-01-223-0580INTERCHANGEABLE
VALVE ASSEMBLY,MANIFOLD
5360-01-231-0419INTERCHANGEABLE
SPRING DETENT
11761
6530-01-304-2007INTERCHANGEABLE
PAD,PRESSURE POINT,PHYSICOTHERAP
11761
5310-01-342-5345INTERCHANGEABLE
NUT,PLAIN,HEXAGON
11761
5340-01-355-6985INTERCHANGEABLE
BOOT,DUST AND MOISTURE SEAL
11-761
6515-01-574-1790INTERCHANGEABLE
SCREW,BONE,MAXILLOFACIAL SURGERY
04.305.012
1680-01-578-2094INTERCHANGEABLE
PANEL,CONTROL,ELECTRICAL-ELECTRO
1176-1

Frequently Asked Questions

What is NSN 5310-00-904-5699?

NSN 5310-00-904-5699 is a Washer,flat, manufactured by Mission Systems Orchard Park Inc, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-904-5699?

NSN 5310-00-904-5699 has 2 cross-referenced part numbers: 11761 (Mission Systems Orchard Park Inc), 11761 (Ingersoll-Rand Company Dba Ingersoll-Rand).

What NSN replaces 5310-00-904-5699?

There are 11 known substitutes for 5310-00-904-5699: 6730-00-356-5898, 5340-00-455-0326, 5950-00-706-8261 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 11761?

Key specifications for 11761: Material: RUBBER SYNTHETIC OVERALL; Thickness: 0.021 INCHES MINIMUM AND 0.041 INCHES MAXIMUM IN; Peripheral Shape Style: ROUND; Hardness Rating: 70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM. 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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