PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

78-1Washer,flat

Borg-Warner Corp Marvel-Schebler/tillotson Div · NSN 5310-00-262-4853 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-262-4853 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-262-4853. Primary manufacturer part number: 78-1.
Features
  • Washer,flat — FSC 5310
  • Material: STEEL OVERALL
  • Cross-Sectional Shape Style: RECTANGULAR
  • Overall Diameter: 0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM IN
  • Hole Diameter: 0.255 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN
  • Thickness: 0.026 INCHES MINIMUM AND 0.036 INCHES MAXIMUM IN
  • Surface Treatment: CADMIUM OVERALL
  • Center Hole Shape Style: ROUND
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-262-4853, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Borg-Warner Corp Marvel-Schebler/tillotson Div. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-262-4853
Primary Part Number78-1
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerBorg-Warner Corp Marvel-Schebler/tillotson Div
StatusCANCELLED
MaterialSTEEL OVERALL
Cross-Sectional Shape StyleRECTANGULAR
Overall Diameter0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM IN
Hole Diameter0.255 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN
Thickness0.026 INCHES MINIMUM AND 0.036 INCHES MAXIMUM IN
Surface TreatmentCADMIUM OVERALL
Center Hole Shape StyleROUND
Peripheral Shape StyleROUND
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
4820-00-093-5518781 INTERCHANGEABLE
Diaphragm,valve,flat
Sealco Air Controls Inc
5365-00-111-4229A781 INTERCHANGEABLE
Plug,machine Thread
Eaton Aerospace Llc Div Fluid and Electrical Distribution Division
6135-00-120-1019 INTERCHANGEABLE
Battery,nonrechargeable
8030-00-180-633959575 INTERCHANGEABLE
Caulking Compound
Loctite Corp
3530-00-223-356978-1 INTERCHANGEABLE
Sewing Machine,industrial
Singer Industrial Sewing Products Co Cutters Exchange Div
5985-00-556-9202 INTERCHANGEABLE
Dummy Load,electrical
5340-00-724-43271035052-10 INTERCHANGEABLE
Clamp,loop
Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road)
5340-00-737-284216976 INTERCHANGEABLE
Cover,access
Dana Corp Spicer Transmission Div
6505-01-010-3066NDC00002-1499-01 INTERCHANGEABLE
Tobramycin Injection
Eli Lilly and Company
6620-01-025-339506102-1 INTERCHANGEABLE
Gage,pressure,dial Indicating
Maxima Technologies & Systems Llc
Cross-Reference Index
Part NumberManufacturer
78-1 Borg-Warner Corp Marvel-Schebler/tillotson Div (USA)
A78-1 Borg-Warner Corp Marvel-Schebler/tillotson Div (USA)
FF-W-92B Federal Specifications Promulgated by General Services Administration Washington DC (USA)
Related Parts
4820-00-093-5518INTERCHANGEABLE
DIAPHRAGM,VALVE,FLAT
781
5365-00-111-4229INTERCHANGEABLE
PLUG,MACHINE THREAD
A781
6135-00-120-1019INTERCHANGEABLE
BATTERY,NONRECHARGEABLE
8030-00-180-6339INTERCHANGEABLE
CAULKING COMPOUND
59575
3530-00-223-3569INTERCHANGEABLE
SEWING MACHINE,INDUSTRIAL
78-1
5985-00-556-9202INTERCHANGEABLE
DUMMY LOAD,ELECTRICAL
5340-00-724-4327INTERCHANGEABLE
CLAMP,LOOP
1035052-10
5340-00-737-2842INTERCHANGEABLE
COVER,ACCESS
16976
6505-01-010-3066INTERCHANGEABLE
TOBRAMYCIN INJECTION
NDC00002-1499-01
6620-01-025-3395INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
06102-1
6650-01-191-0139INTERCHANGEABLE
SPECTROPHOTOMETER
0186-0880
6505-01-249-9789INTERCHANGEABLE
SODIUM BICARBONATE,CITRIC ACID,A
781

Frequently Asked Questions

What is NSN 5310-00-262-4853?

NSN 5310-00-262-4853 is a Washer,flat, manufactured by Borg-Warner Corp Marvel-Schebler/tillotson Div, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-262-4853?

NSN 5310-00-262-4853 has 3 cross-referenced part numbers: 78-1 (Borg-Warner Corp Marvel-Schebler/tillotson Div), A78-1 (Borg-Warner Corp Marvel-Schebler/tillotson Div), FF-W-92B (Federal Specifications Promulgated by General Services Administration Washington DC).

What NSN replaces 5310-00-262-4853?

There are 12 known substitutes for 5310-00-262-4853: 4820-00-093-5518, 5365-00-111-4229, 6135-00-120-1019 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 78-1?

Key specifications for 78-1: Material: STEEL OVERALL; Cross-Sectional Shape Style: RECTANGULAR; Overall Diameter: 0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM IN; Hole Diameter: 0.255 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN. 8 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-262-4853 still in active supply?

NSN 5310-00-262-4853 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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