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11657059 — NUT,PLAIN,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

11657059: NUT,PLAIN,HEXAGON.

The NUT,PLAIN,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1536 OVERALL, nut_style: HEXAGON, nut_height: 0.443 INCHES MINIMUM AND 0.463 INCHES MAXIMUM IN, thread_class: 3B, thread_series: UNF, hardness_rating: 271.0 BRINELL HULTGREN MINIMUM AND 319.0 BRINELL HULTGREN MAXIMUM. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-927-9399, 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
11657059
NSN: 5310-00-927-9399
FSC: 5310 — Nuts and Washers
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL COMP 1536 OVERALL
nut_styleHEXAGON
nut_height0.443 INCHES MINIMUM AND 0.463 INCHES MAXIMUM IN
thread_class3B
thread_seriesUNF
hardness_rating271.0 BRINELL HULTGREN MINIMUM AND 319.0 BRINELL HULTGREN MAXIMUM
thread_directionRIGHT-HAND
countersink_angle45.0 DEGREES NOMINAL NUT
surface_treatmentCADMIUM OVERALL
width_across_flats0.675 INCHES MINIMUM AND 0.688 INCHES MAXIMUM IN
nominal_thread_size0.438 INCHES IN
bearing_surface_typeCHAMFERED
NSN5310-00-927-9399
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 11657059 · 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
•
WIDTH ACROSS FLATS: 0.675 INCHES MINIMUM AND 0.688 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD SERIES: UNF
•
HARDNESS RATING: 271.0 BRINELL HULTGREN MINIMUM AND 319.0 BRINELL HULTGREN MAXIMUM
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-637 FED SPEC 1ST MATERIAL RESPONSE OR ASTM A108 ASSN STD 2ND MATERIAL RESPONSE OR ASTM A576 ASSN STD 3RD MATERIAL RESPONSE OR ASTM A576 ASSN STD 4TH MATERIAL RESPONSE OR ASTM A576 ASSN STD 5TH MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.438 INCHES IN
•
NUT HEIGHT: 0.443 INCHES MINIMUM AND 0.463 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.675 INCHES MINIMUM AND 0.688 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIESUNF
HARDNESS RATING271.0 BRINELL HULTGREN MINIMUM AND 319.0 BRINELL HULTGREN MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-637 FED SPEC 1ST MATERIAL RESPONSE OR ASTM A108 ASSN STD 2ND MATERIAL RESPONSE OR ASTM A576 ASSN STD 3RD MATERIAL RESPONSE OR ASTM A576 ASSN STD 4TH MATERIAL RESPONSE OR ASTM A576 ASSN STD 5TH MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.438 INCHES IN
NUT HEIGHT0.443 INCHES MINIMUM AND 0.463 INCHES MAXIMUM IN
SURFACE TREATMENTCADMIUM OVERALL
COUNTERSINK ANGLE45.0 DEGREES NOMINAL NUT
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
SUBSTITUTES & CROSS-REFERENCES 2
432047CReference document
Same NSN cross-reference
Reference document — Secondary reference
930943Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 11657059?
11657059 is a NUT,PLAIN,HEXAGON.
What parts can replace 11657059?
There are 2 known substitutes for 11657059: 432047C, 930943. Substitute compatibility should be verified for your specific system.
What is the NSN for 11657059?
11657059 is cataloged in the U.S. Government catalog under NSN 5310-00-927-9399. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.