PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SC-C-61466Washer,concave

Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · NSN 5310-00-791-1638 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-791-1638 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-791-1638. Primary manufacturer part number: SC-C-61466.
Features
  • Washer,concave — FSC 5310
  • Style Designator: CONCAVE
  • Color: BLACK OVERALL
  • Surface Treatment: OXIDE OVERALL
  • Material: STEEL COMP 630 OVERALL
  • Outside Diameter: 0.312 INCHES NOMINAL IN
  • Hole Diameter: 0.201 INCHES MINIMUM AND 0.202 INCHES MAXIMUM IN
  • Hardness Rating: 40.0 ROCKWELL C MINIMUM AND 48.0 ROCKWELL C MAXIMUM
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 630 Overall construction
General Description

The Washer,concave, cataloged under National Stock Number 5310-00-791-1638, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir. Government technical data includes 9 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-791-1638
Primary Part NumberSC-C-61466
Item NameWasher,concave
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerUs Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
StatusACTIVE
Style DesignatorCONCAVE
ColorBLACK OVERALL
Surface TreatmentOXIDE OVERALL
MaterialSTEEL COMP 630 OVERALL
Outside Diameter0.312 INCHES NOMINAL IN
Hole Diameter0.201 INCHES MINIMUM AND 0.202 INCHES MAXIMUM IN
Hardness Rating40.0 ROCKWELL C MINIMUM AND 48.0 ROCKWELL C MAXIMUM
Material Thickness0.062 INCHES MINIMUM AND 0.063 INCHES MAXIMUM IN
Radius0.188 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5330-00-140-809266331 INTERCHANGEABLE
Gasket
L3harris Technologies, Inc Div Space & Airborne Systems
6150-01-010-14436031T28P01 INTERCHANGEABLE
Cable Assembly,power,electrical,
General Electric Company Dba Ge Aerospace
6145-01-265-906888777 INTERCHANGEABLE
Cable,special Purpose,electrical
Belden Wire & Cable Company Llc Dba Belden Cdt Electronics Division
Cross-Reference Index
Part NumberManufacturer
SC-C-61466 Mn Industries Co
SC-C-61466 PRIMARY Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
66331 L3 Technologies, Inc. Dba Insight Technology Division Div Insight Technology Division (USA)
Related Parts
5330-00-140-8092INTERCHANGEABLE
GASKET
66331
6150-01-010-1443INTERCHANGEABLE
CABLE ASSEMBLY,POWER,ELECTRICAL,
6031T28P01
6145-01-265-9068INTERCHANGEABLE
CABLE,SPECIAL PURPOSE,ELECTRICAL
88777

Frequently Asked Questions

What is NSN 5310-00-791-1638?

NSN 5310-00-791-1638 is a Washer,concave, manufactured by Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-791-1638?

NSN 5310-00-791-1638 has 3 cross-referenced part numbers: SC-C-61466 (Mn Industries Co), SC-C-61466 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir), 66331 (L3 Technologies, Inc. Dba Insight Technology Division Div Insight Technology Division).

What NSN replaces 5310-00-791-1638?

There are 3 known substitutes for 5310-00-791-1638: 5330-00-140-8092, 6150-01-010-1443, 6145-01-265-9068. Verify interchangeability with system specifications before substitution.

What are the specifications of SC-C-61466?

Key specifications for SC-C-61466: Style Designator: CONCAVE; Color: BLACK OVERALL; Surface Treatment: OXIDE OVERALL; Material: STEEL COMP 630 OVERALL. 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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