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SM-B-540947-1 — NUT,SELF-LOCKING,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

SM-B-540947-1: NUT,SELF-LOCKING,HEXAGON.

The NUT,SELF-LOCKING,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1137 NUT, nut_style: HEXAGON, nut_height: 0.133 INCHES MINIMUM AND 0.153 INCHES MAXIMUM IN, temp_rating: 250.0 FAHRENHEIT NOMINAL DEGF, thread_class: 3B, thread_series: UNIFIED NATIONAL COARSE (UNC). This part is cataloged in the U.S.

Government catalog under NSN 5310-00-275-1404, 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
SM-B-540947-1
NSN: 5310-00-275-1404
FSC: 5310 — Nuts and Washers
CAGE: 80063 — US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR (USA)
SPECIFICATIONS
materialSTEEL COMP 1137 NUT
nut_styleHEXAGON
nut_height0.133 INCHES MINIMUM AND 0.153 INCHES MAXIMUM IN
temp_rating250.0 FAHRENHEIT NOMINAL DEGF
thread_class3B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
locking_featurePREVAILING TORQUE WITH NONMETALLIC INSERT
thread_directionRIGHT-HAND
width_across_flats0.243 INCHES MINIMUM AND 0.251 INCHES MAXIMUM IN
nominal_thread_size0.112 INCHES IN
thread_quantity_per_inch40
material_document_and_classification66 FED STD SINGLE MATERIAL RESPONSE NUT
NSN5310-00-275-1404
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: SM-B-540947-1 · 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: 0.243 INCHES MINIMUM AND 0.251 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: Q-P-416,TYPE 2,CLASS 3 FED SPEC 13TH TREATMENT RESPONSE OVERALL EXCEPT INSERT
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
TEMP RATING: 250.0 FAHRENHEIT NOMINAL DEGF
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD SINGLE MATERIAL RESPONSE NUT
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.112 INCHES IN
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.243 INCHES MINIMUM AND 0.251 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQ-P-416,TYPE 2,CLASS 3 FED SPEC 13TH TREATMENT RESPONSE OVERALL EXCEPT INSERT
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
TEMP RATING250.0 FAHRENHEIT NOMINAL DEGF
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD SINGLE MATERIAL RESPONSE NUT
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-N-25027 MIL SPEC SINGLE MATERIAL RESPONSE LOCKING INSERT
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.112 INCHES IN
LOCKING FEATUREPREVAILING TORQUE WITH NONMETALLIC INSERT
NUT HEIGHT0.133 INCHES MINIMUM AND 0.153 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 8
203M0024P002Reference document
Same NSN cross-reference
Reference document — Secondary reference
G650145-41Reference document
Same NSN cross-reference
Reference document — Secondary reference
298538-1Reference document
Same NSN cross-reference
Reference document — Secondary reference
1JA2948H11Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
203MR024P002Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
943787PC4Reference 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 SM-B-540947-1?
SM-B-540947-1 is a NUT,SELF-LOCKING,HEXAGON.
What parts can replace SM-B-540947-1?
There are 8 known substitutes for SM-B-540947-1: 203M0024P002, G650145-41, 298538-1 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SM-B-540947-1?
SM-B-540947-1 is cataloged in the U.S. Government catalog under NSN 5310-00-275-1404. This indicates validated use in U.S. government and defense supply chains.
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