PartsTable
Technical Data Sheet
104-1S12M ✓ Verified by PartsTable
· NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, thickness: 0.049 INCHES NOMINAL IN, hole_diameter: 0.250 INCHES NOMINAL IN, overall_diameter: 0.562 INCHES NOMINAL IN, surface_treatment: CADMIUM OR PHOSPHATE OR ZINC OVERALL, peripheral_shape_style: ROUND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-685-8308, indicating validated use in U.S.

government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
104-1S12M
NSN: 5310-00-685-8308
FSC: 5310
CAGE: 80063 — US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR (USA)
SPECIFICATIONS
materialSTEEL OVERALL
thickness0.049 INCHES NOMINAL IN
hole_diameter0.250 INCHES NOMINAL IN
overall_diameter0.562 INCHES NOMINAL IN
surface_treatmentCADMIUM OR PHOSPHATE OR ZINC OVERALL
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
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
NSN5310-00-685-8308
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 104-1S12M · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
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
HOLE DIAMETER: 0.250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
120385Interchangeable
interchangeable cross-reference
interchangeable
1905-103Interchangeable
interchangeable cross-reference
interchangeable
D11076-28A24Interchangeable
interchangeable cross-reference
interchangeable
MS-120-A-1Interchangeable
interchangeable cross-reference
interchangeable
557109R1Interchangeable
interchangeable cross-reference
interchangeable
6150PL0918623Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 104-1S12M?
104-1S12M is a WASHER,FLAT.
What parts can replace 104-1S12M?
There are 14 known substitutes for 104-1S12M: 120385, 1905-103, D11076-28A24 and 11 more. Substitute compatibility should be verified for your specific system.
Is 104-1S12M still available?
104-1S12M is currently cancelled.
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