PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1597Washer,flat

Eaton Corporation Dba Airflex Div Div Airflex · NSN 5310-00-197-5312 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-197-5312 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-197-5312. Primary manufacturer part number: 1597.
Features
  • Washer,flat — FSC 5310
  • Overall Diameter: 1.224 INCHES MINIMUM AND 1.244 INCHES MAXIMUM IN
  • Material Document and Classification: QQ-C-576 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Material: COPPER ALLOY OVERALL
  • Peripheral Shape Style: ROUND
  • Center Hole Shape Style: ROUND
  • Cross-Sectional Shape Style: RECTANGULAR
  • Hole Diameter: 0.881 INCHES MINIMUM AND 0.901 INCHES MAXIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Copper Alloy Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-197-5312, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Eaton Corporation Dba Airflex Div Div Airflex. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-197-5312
Primary Part Number1597
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerEaton Corporation Dba Airflex Div Div Airflex
StatusACTIVE
Overall Diameter1.224 INCHES MINIMUM AND 1.244 INCHES MAXIMUM IN
Material Document and ClassificationQQ-C-576 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MaterialCOPPER ALLOY OVERALL
Peripheral Shape StyleROUND
Center Hole Shape StyleROUND
Cross-Sectional Shape StyleRECTANGULAR
Hole Diameter0.881 INCHES MINIMUM AND 0.901 INCHES MAXIMUM IN
Thickness0.084 INCHES MINIMUM AND 0.104 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5950-00-074-32891597 INTERCHANGEABLE
Coil,radio Frequency
Torotel, Inc. Div Torotel Products, Inc.
5120-00-116-76043823024 INTERCHANGEABLE
Puller,injector
Cummins Inc
5905-00-133-29191597 INTERCHANGEABLE
Resistor Set,matched
Ballantine Laboratories Inc
2590-00-253-7421292481 INTERCHANGEABLE
Cap,filler Opening
Briggs and Stratton Corp
5340-00-303-53751597 INTERCHANGEABLE
Bumper
Atlantic India Rubber Co Inc
3830-00-353-30673001597-8 INTERCHANGEABLE
Hose Assembly Rubbe
New Holland Construction
2530-00-421-131015-97 INTERCHANGEABLE
Brake Drum
Fairbanks Morse, Llc
5905-00-625-6900 INTERCHANGEABLE
Resistor,variable,wire Wound,non
5910-00-919-76980150-0028 INTERCHANGEABLE
Capacitor,fixed,ceramic Dielectr
Keysight Technologies Inc
5330-01-275-86141597 INTERCHANGEABLE
Gasket
Industrial Oven and Equipment Co
Cross-Reference Index
Part NumberManufacturer
1597 PRIMARY Eaton Corporation Dba Airflex Div Div Airflex (USA)
3376000 PRIMARY Hatch & Kirk, Inc. (USA)
3303079 General Motors Corp Electro-Motive Div (USA)
3376000 General Motors Corp Electro-Motive Div (USA)
3303079 PRIMARY Hatch & Kirk, Inc. (USA)
Related Parts
5950-00-074-3289INTERCHANGEABLE
COIL,RADIO FREQUENCY
1597
5120-00-116-7604INTERCHANGEABLE
PULLER,INJECTOR
3823024
5905-00-133-2919INTERCHANGEABLE
RESISTOR SET,MATCHED
1597
2590-00-253-7421INTERCHANGEABLE
CAP,FILLER OPENING
292481
5340-00-303-5375INTERCHANGEABLE
BUMPER
1597
3830-00-353-3067INTERCHANGEABLE
HOSE ASSEMBLY RUBBE
3001597-8
2530-00-421-1310INTERCHANGEABLE
BRAKE DRUM
15-97
5905-00-625-6900INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,NON
5910-00-919-7698INTERCHANGEABLE
CAPACITOR,FIXED,CERAMIC DIELECTR
0150-0028
5330-01-275-8614INTERCHANGEABLE
GASKET
1597
5985-01-357-0409INTERCHANGEABLE
DIVIDER,POWER,RADIO FREQUENCY
4004
6750-01-382-8500INTERCHANGEABLE
DEVELOPER,PHOTOGRAPHIC

Frequently Asked Questions

What is NSN 5310-00-197-5312?

NSN 5310-00-197-5312 is a Washer,flat, manufactured by Eaton Corporation Dba Airflex Div Div Airflex, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-197-5312?

NSN 5310-00-197-5312 has 5 cross-referenced part numbers: 1597 (Eaton Corporation Dba Airflex Div Div Airflex), 3376000 (Hatch & Kirk, Inc.), 3303079 (General Motors Corp Electro-Motive Div), 3376000 (General Motors Corp Electro-Motive Div), 3303079 (Hatch & Kirk, Inc.).

What NSN replaces 5310-00-197-5312?

There are 12 known substitutes for 5310-00-197-5312: 5950-00-074-3289, 5120-00-116-7604, 5905-00-133-2919 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1597?

Key specifications for 1597: Overall Diameter: 1.224 INCHES MINIMUM AND 1.244 INCHES MAXIMUM IN; Material Document and Classification: QQ-C-576 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Material: COPPER ALLOY OVERALL; Peripheral Shape Style: ROUND. 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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