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H50737-5 — NUT,SELF-LOCKING,EXTENDED WASHER

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

H50737-5: NUT,SELF-LOCKING,EXTENDED WASHER.

NUT,SELF-LOCKING,EXTENDED WASHER. Key specifications include material: NICKEL ALLOY 718 OVERALL, nut_style: DOUBLE HEXAGON, temp_rating: 600.0 FAHRENHEIT MAXIMUM DEGF, thread_class: 3B, thread_series: UNIFIED NATIONAL JOINT FINE (UNJF), overall_height: 0.363 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-078-9435, 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
H50737-5
NSN: 5310-01-078-9435
FSC: 5310 — Nuts and Washers
CAGE: 15653 — HOWMET GLOBAL FASTENING SYSTEMS INC (USA)
SPECIFICATIONS
materialNICKEL ALLOY 718 OVERALL
nut_styleDOUBLE HEXAGON
temp_rating600.0 FAHRENHEIT MAXIMUM DEGF
thread_class3B
thread_seriesUNIFIED NATIONAL JOINT FINE (UNJF)
overall_height0.363 INCHES MAXIMUM IN
hardness_rating48.0 ROCKWELL C MAXIMUM
locking_featurePREVAILING TORQUE ALL METAL DESIGN
special_featuresDYED BLUE COLOR NO. 15526 FED STD 595
thread_directionRIGHT-HAND
washer_thickness0.035 INCHES MINIMUM IN
precious_materialSILVER
NSN5310-01-078-9435
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: H50737-5 · 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
•
WASHER OUTSIDE DIAMETER: 0.491 INCHES MINIMUM AND 0.532 INCHES MAXIMUM IN
•
WIDTH ACROSS FLATS: 0.267 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: AMS2410 ASSN STD SINGLE TREATMENT RESPONSE THREADS
•
THREAD SERIES: UNIFIED NATIONAL JOINT FINE (UNJF)
•
PRECIOUS MATERIAL: SILVER
•
TEMP RATING: 600.0 FAHRENHEIT MAXIMUM DEGF
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.363 INCHES MAXIMUM IN
WASHER OUTSIDE DIAMETER0.491 INCHES MINIMUM AND 0.532 INCHES MAXIMUM IN
WIDTH ACROSS FLATS0.267 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONAMS2410 ASSN STD SINGLE TREATMENT RESPONSE THREADS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL EXCEPT THREADS
THREAD SERIESUNIFIED NATIONAL JOINT FINE (UNJF)
PRECIOUS MATERIALSILVER
TEMP RATING600.0 FAHRENHEIT MAXIMUM DEGF
HARDNESS RATING48.0 ROCKWELL C MAXIMUM
WASHER THICKNESS0.035 INCHES MINIMUM IN
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 3
H50737-4Reference document
Same NSN cross-reference
Reference document — Secondary reference
642AS0736-4Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
77658-524Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is H50737-5?
H50737-5 is a NUT,SELF-LOCKING,EXTENDED WASHER.
What parts can replace H50737-5?
There are 3 known substitutes for H50737-5: H50737-4, 642AS0736-4, 77658-524. Substitute compatibility should be verified for your specific system.
What is the NSN for H50737-5?
H50737-5 is cataloged in the U.S. Government catalog under NSN 5310-01-078-9435. This indicates validated use in U.S. government and defense supply chains.
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