PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

741AWasher,keyway

Mgm Brakes Inc Div Indian Head Industries Inc · NSN 5310-00-485-0916 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-485-0916 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-485-0916. Primary manufacturer part number: 741A.
Features
  • Washer,keyway — FSC 5310
  • Hole Diameter: 2.740 INCHES MINIMUM AND 2.760 INCHES MAXIMUM IN
  • Material: STEEL OVERALL
  • Outside Diameter: 3.545 INCHES MINIMUM AND 3.575 INCHES MAXIMUM IN
  • Internal Keyway Width: 0.380 INCHES NOMINAL IN
  • Distance From Centerline to Bottom of Internal Keyway: 1.620 INCHES NOMINAL IN
  • Material Thickness: 0.043 INCHES MINIMUM AND 0.053 INCHES MAXIMUM IN
  • Surface Treatment: ZINC AND DICHROMATE OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Washer,keyway, cataloged under National Stock Number 5310-00-485-0916, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Mgm Brakes Inc Div Indian Head Industries Inc. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-485-0916
Primary Part Number741A
Item NameWasher,keyway
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerMgm Brakes Inc Div Indian Head Industries Inc
StatusACTIVE
Hole Diameter2.740 INCHES MINIMUM AND 2.760 INCHES MAXIMUM IN
MaterialSTEEL OVERALL
Outside Diameter3.545 INCHES MINIMUM AND 3.575 INCHES MAXIMUM IN
Internal Keyway Width0.380 INCHES NOMINAL IN
Distance From Centerline to Bottom of Internal Keyway1.620 INCHES NOMINAL IN
Material Thickness0.043 INCHES MINIMUM AND 0.053 INCHES MAXIMUM IN
Surface TreatmentZINC AND DICHROMATE OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
4730-00-278-5694SAE J512 3-2 060103BA INTERCHANGEABLE
Adapter,straight,pipe to Tube
Sae International Dba Sae International
5910-00-519-9734850S50N INTERCHANGEABLE
Capacitor,fixed,ceramic Dielectr
High Energy Corp.
Cross-Reference Index
Part NumberManufacturer
0003352072 Arquus (FRA)
3352072 Arquus (FRA)
741A PRIMARY Mgm Brakes Inc Div Indian Head Industries Inc (USA)
16965400 Wabco France (FRA)
Related Parts
4730-00-278-5694INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
SAE J512 3-2 060103BA
5910-00-519-9734INTERCHANGEABLE
CAPACITOR,FIXED,CERAMIC DIELECTR
850S50N

Frequently Asked Questions

What is NSN 5310-00-485-0916?

NSN 5310-00-485-0916 is a Washer,keyway, manufactured by Mgm Brakes Inc Div Indian Head Industries Inc, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-485-0916?

NSN 5310-00-485-0916 has 4 cross-referenced part numbers: 0003352072 (Arquus), 3352072 (Arquus), 741A (Mgm Brakes Inc Div Indian Head Industries Inc), 16965400 (Wabco France).

What NSN replaces 5310-00-485-0916?

There are 2 known substitutes for 5310-00-485-0916: 4730-00-278-5694, 5910-00-519-9734. Verify interchangeability with system specifications before substitution.

What are the specifications of 741A?

Key specifications for 741A: Hole Diameter: 2.740 INCHES MINIMUM AND 2.760 INCHES MAXIMUM IN; Material: STEEL OVERALL; Outside Diameter: 3.545 INCHES MINIMUM AND 3.575 INCHES MAXIMUM IN; Internal Keyway Width: 0.380 INCHES NOMINAL IN. 7 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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