PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

104-1S12MWasher,flat

Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · NSN 5310-00-685-8308 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-685-8308 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-685-8308. Primary manufacturer part number: 104-1S12M.
Features
  • Washer,flat — FSC 5310
  • Material: STEEL OVERALL
  • Surface Treatment: CADMIUM OR PHOSPHATE OR ZINC OVERALL
  • Nondefinitive Spec/std Data: A TYPE AND 1 GRADE AND A CLASS
  • Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 3 FED SPEC 1ST TREATMENT RESPONSE OR MIL-P-16232 MIL SPEC 2ND TREATMENT RESPONSE OR QQ-Z-325 FED SPEC 3RD TREATMENT RESPONSE OR ASTM A153 ASSN STD 3RD TREATMENT RESPONSE OVERALL
  • Thickness: 0.049 INCHES NOMINAL IN
  • Overall Diameter: 0.562 INCHES NOMINAL IN
  • Cross-Sectional Shape Style: RECTANGULAR
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 5310-00-685-8308, 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 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-685-8308
Primary Part Number104-1S12M
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerUs Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
StatusCANCELLED
MaterialSTEEL OVERALL
Surface TreatmentCADMIUM OR PHOSPHATE OR ZINC OVERALL
Nondefinitive Spec/std DataA TYPE AND 1 GRADE AND A CLASS
Surface Treatment Document and ClassificationQQ-P-416,TY 2,CL 3 FED SPEC 1ST TREATMENT RESPONSE OR MIL-P-16232 MIL SPEC 2ND TREATMENT RESPONSE OR QQ-Z-325 FED SPEC 3RD TREATMENT RESPONSE OR ASTM A153 ASSN STD 3RD TREATMENT RESPONSE OVERALL
Thickness0.049 INCHES NOMINAL IN
Overall Diameter0.562 INCHES NOMINAL IN
Cross-Sectional Shape StyleRECTANGULAR
Hole Diameter0.250 INCHES NOMINAL IN
Center Hole Shape StyleROUND
Peripheral Shape StyleROUND
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
5310-00-012-038511X100 INTERCHANGEABLE
Washer,flat
Eastern Co Div Eberhard Manufacturing
2810-00-310-2867120385 INTERCHANGEABLE
Gear,fuel Pump-Tach
Curtiss-Wright Controls, Inc. Div Actuation Division
6680-01-181-7183MS-120-A-1 INTERCHANGEABLE
Meter,volumetric Positive Displa
Liquid Controls, L.l.c. Div Idex Corporation
5310-01-195-5091 INTERCHANGEABLE
Washer,flat
6150-01-224-4121984A-BLACK INTERCHANGEABLE
Lead,electrical
Daburn Wire & Cable Corp
7520-01-316-215900705 INTERCHANGEABLE
Case,filing,transfer
Fellowes Inc
Cross-Reference Index
Part NumberManufacturer
104-1S12M Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
120385 Rolls-Royce Solutions America Inc (USA)
FFW92 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
125-10497-07 Gte Communication Systems Corp (USA)
984A Brinkley Technology Group Llc Dba Hercules Manufacturing (USA)
984A Hercules Engine Co Inc (USA)
00705 Tru-Hitch, Inc. (USA)
Related Parts
5310-00-012-0385INTERCHANGEABLE
WASHER,FLAT
11X100
2810-00-310-2867INTERCHANGEABLE
GEAR,FUEL PUMP-TACH
120385
6680-01-181-7183INTERCHANGEABLE
METER,VOLUMETRIC POSITIVE DISPLA
MS-120-A-1
5310-01-195-5091INTERCHANGEABLE
WASHER,FLAT
6150-01-224-4121INTERCHANGEABLE
LEAD,ELECTRICAL
984A-BLACK
7520-01-316-2159INTERCHANGEABLE
CASE,FILING,TRANSFER
00705

Frequently Asked Questions

What is NSN 5310-00-685-8308?

NSN 5310-00-685-8308 is a Washer,flat, manufactured by Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-685-8308?

NSN 5310-00-685-8308 has 7 cross-referenced part numbers: 104-1S12M (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir), 120385 (Rolls-Royce Solutions America Inc), FFW92 (Federal Specifications Promulgated by General Services Administration Washington DC), 125-10497-07 (Gte Communication Systems Corp), 984A (Brinkley Technology Group Llc Dba Hercules Manufacturing) and 2 more.

What NSN replaces 5310-00-685-8308?

There are 6 known substitutes for 5310-00-685-8308: 5310-00-012-0385, 2810-00-310-2867, 6680-01-181-7183 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 104-1S12M?

Key specifications for 104-1S12M: Material: STEEL OVERALL; Surface Treatment: CADMIUM OR PHOSPHATE OR ZINC OVERALL; Nondefinitive Spec/std Data: A TYPE AND 1 GRADE AND A CLASS; Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 3 FED SPEC 1ST TREATMENT RESPONSE OR MIL-P-16232 MIL SPEC 2ND TREATMENT RESPONSE OR QQ-Z-325 FED SPEC 3RD TREATMENT RESPONSE OR ASTM A153 ASSN STD 3RD TREATMENT RESPONSE OVERALL. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-685-8308 still in active supply?

NSN 5310-00-685-8308 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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