PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

M-3-91Washer,flat

Xto, Incorporated Dba Xto Inc · NSN 5310-01-413-1706 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-413-1706 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-413-1706. Primary manufacturer part number: M-3-91.
Features
  • Washer,flat — FSC 5310
  • Material: RUBBER CHLOROPRENE CLASS CR OVERALL
  • Material Document and Classification: MIL-R-6855 CLASS 2 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Cross-Sectional Shape Style: RECTANGULAR
  • Overall Diameter: 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN
  • Center Hole Shape Style: ROUND
  • Hole Diameter: 0.182 INCHES MINIMUM AND 0.192 INCHES MAXIMUM IN
  • Peripheral Shape Style: ROUND
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Rubber Chloroprene Class Cr Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-01-413-1706, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Xto, Incorporated Dba Xto 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-413-1706
Primary Part NumberM-3-91
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerXto, Incorporated Dba Xto Inc
StatusACTIVE
MaterialRUBBER CHLOROPRENE CLASS CR OVERALL
Material Document and ClassificationMIL-R-6855 CLASS 2 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Cross-Sectional Shape StyleRECTANGULAR
Overall Diameter0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN
Center Hole Shape StyleROUND
Hole Diameter0.182 INCHES MINIMUM AND 0.192 INCHES MAXIMUM IN
Peripheral Shape StyleROUND
Thickness0.031 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5820-00-498-0730391A INTERCHANGEABLE
Panel
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
6220-01-313-8975 INTERCHANGEABLE
Light,dome
5340-01-681-6061M3-91 INTERCHANGEABLE
Latch Set,mortise
Southco Inc
Cross-Reference Index
Part NumberManufacturer
M-3-91 PRIMARY Xto, Incorporated Dba Xto Inc (USA)
77C956295P1 Lockheed Martin Corporation Div Rms (USA)
Related Parts
5820-00-498-0730INTERCHANGEABLE
PANEL
391A
6220-01-313-8975INTERCHANGEABLE
LIGHT,DOME
5340-01-681-6061INTERCHANGEABLE
LATCH SET,MORTISE
M3-91

Frequently Asked Questions

What is NSN 5310-01-413-1706?

NSN 5310-01-413-1706 is a Washer,flat, manufactured by Xto, Incorporated Dba Xto Inc, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-413-1706?

NSN 5310-01-413-1706 has 2 cross-referenced part numbers: M-3-91 (Xto, Incorporated Dba Xto Inc), 77C956295P1 (Lockheed Martin Corporation Div Rms).

What NSN replaces 5310-01-413-1706?

There are 3 known substitutes for 5310-01-413-1706: 5820-00-498-0730, 6220-01-313-8975, 5340-01-681-6061. Verify interchangeability with system specifications before substitution.

What are the specifications of M-3-91?

Key specifications for M-3-91: Material: RUBBER CHLOROPRENE CLASS CR OVERALL; Material Document and Classification: MIL-R-6855 CLASS 2 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: RECTANGULAR; Part Name Assigned by Controlling Agency: NAVY SPECIAL PROJECT. 9 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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