PartsTable
Technical Data Sheet
837-0625-320 ✓ 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 NUT,SELF-LOCKING,HEXAGON is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYHEXAMETHYLENE AMIDE LOCKING INSERT, nut_style: HEXAGON, nut_height: 0.732 INCHES MINIMUM AND 0.766 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 Federal Logistics Information System (FLIS) under NSN 5310-01-004-6946, 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
837-0625-320
NSN: 5310-01-004-6946
FSC: 5310
CAGE: 10941 — CARVER PUMP COMPANY (USA)
SPECIFICATIONS
materialPLASTIC POLYHEXAMETHYLENE AMIDE LOCKING INSERT
nut_styleHEXAGON
nut_height0.732 INCHES MINIMUM AND 0.766 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
countersink_angle88.0 DEGREES NOMINAL NUT
width_across_flats0.928 INCHES MINIMUM AND 0.944 INCHES MAXIMUM IN
nominal_thread_size0.625 INCHES IN
bearing_surface_typeCHAMFERED OR WASHER FACED
NSN5310-01-004-6946
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 837-0625-320 · 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
BEARING SURFACE TYPE: CHAMFERED OR WASHER FACED
NOMINAL THREAD SIZE: 0.625 INCHES IN
BEARING SURFACE FINISH: 125.0 MICROINCHES
COUNTERSINK ANGLE: 88.0 DEGREES NOMINAL NUT
THREAD DIRECTION: RIGHT-HAND
MATERIAL: PLASTIC POLYHEXAMETHYLENE AMIDE LOCKING INSERT
THREAD CLASS: 3B
TECHNICAL CHARACTERISTICS (FLIS)
BEARING SURFACE TYPECHAMFERED OR WASHER FACED
NOMINAL THREAD SIZE0.625 INCHES IN
BEARING SURFACE FINISH125.0 MICROINCHES
COUNTERSINK ANGLE88.0 DEGREES NOMINAL NUT
THREAD DIRECTIONRIGHT-HAND
MATERIALPLASTIC POLYHEXAMETHYLENE AMIDE LOCKING INSERT
MATERIALNICKEL ALLOY 400 OR NICKEL ALLOY R-405 NUT
THREAD CLASS3B
MATERIAL DOCUMENT AND CLASSIFICATIONASTM D4066,COMP A,TYPE 1 ASSN STD SINGLE MATERIAL RESPONSE LOCKING INSERT
THREAD QUANTITY PER INCH11
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
U9NE-101Interchangeable
interchangeable cross-reference
interchangeable
09NE101Interchangeable
interchangeable cross-reference
interchangeable
801-6408784 FIND 178Interchangeable
interchangeable cross-reference
interchangeable
302707 FIND 14Interchangeable
interchangeable cross-reference
interchangeable
60-08-0429L1Interchangeable
interchangeable cross-reference
interchangeable
QQ-N-281 CL BInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 837-0625-320?
837-0625-320 is a NUT,SELF-LOCKING,HEXAGON.
What parts can replace 837-0625-320?
There are 21 known substitutes for 837-0625-320: U9NE-101, 09NE101, 801-6408784 FIND 178 and 18 more. Substitute compatibility should be verified for your specific system.
Is 837-0625-320 still available?
837-0625-320 is currently cancelled.
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