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10121139 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

10121139: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include depth: 0.178 INCHES NOMINAL IN, width: 0.094 INCHES NOMINAL IN, material: ALUMINUM ALLOY 2024, drive_type: SLOTTED, thread_size: 1.312 IN.-32 NS-2A A, guide_design: THREAD CHAMFER. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-215-7828, 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
10121139
NSN: 5310-00-215-7828
NIINs: 002157828, 009256928
FSC: 5310 — Nuts and Washers
CAGE: A486G — NIMIKKEISTOKESKUS NCB FINLAND (FIN)
SPECIFICATIONS
depth0.178 INCHES NOMINAL IN
width0.094 INCHES NOMINAL IN
materialALUMINUM ALLOY 2024
drive_typeSLOTTED
thread_size1.312 IN.-32 NS-2A A
guide_designTHREAD CHAMFER
recess_depth0.152 INCHES NOMINAL IN
hole_diameter1.040 INCHES NOMINAL IN
guide_locationBOTH EDGES
overall_length0.186 INCHES NOMINAL IN
setscrew_notchNOT PROVIDED
style_designatorRECESSED
NSN5310-00-215-7828
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 10121139 · 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
•
OVERALL DIAMETER: 0.984 INCHES MINIMUM AND 1.016 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-5059,COND 1/2 HARD MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
•
HOLE DIAMETER: 0.391 INCHES MINIMUM AND 0.401 INCHES MAXIMUM IN
•
THICKNESS: 0.063 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER0.984 INCHES MINIMUM AND 1.016 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-5059,COND 1/2 HARD MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
PERIPHERAL SHAPE STYLEROUND
MATERIALSTEEL CORROSION RESISTING OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.391 INCHES MINIMUM AND 0.401 INCHES MAXIMUM IN
THICKNESS0.063 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 1
4M36-03050Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 10121139?
10121139 is a WASHER,FLAT.
What parts can replace 10121139?
There is 1 known substitute for 10121139: 4M36-03050. Substitute compatibility should be verified for your specific system.
What is the NSN for 10121139?
10121139 is cataloged in the U.S. Government catalog under NSN 5310-00-215-7828. This indicates validated use in U.S. government and defense supply chains.
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