PartsTable
Technical Data Sheet
9-00003771 ✓ 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,PLAIN,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: HEXAGON, nut_height: 0.212 INCHES MINIMUM AND 0.226 INCHES MAXIMUM IN, thread_class: 2B, thread_series: UNIFIED NATIONAL COARSE (UNC), thread_direction: RIGHT-HAND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-439-5917, 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
9-00003771
NSN: 5310-01-439-5917
FSC: 5310
CAGE: 1SC69 — XPER, INC. (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleHEXAGON
nut_height0.212 INCHES MINIMUM AND 0.226 INCHES MAXIMUM IN
thread_class2B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
thread_directionRIGHT-HAND
width_across_flats0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
nominal_thread_size0.250 INCHES IN
bearing_surface_typeCHAMFERED OR WASHER FACED
thread_quantity_per_inch20
NSN5310-01-439-5917
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 9-00003771 · 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
MATERIAL: STEEL OVERALL
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
BEARING SURFACE TYPE: CHAMFERED OR WASHER FACED
THREAD QUANTITY PER INCH: 20
NOMINAL THREAD SIZE: 0.250 INCHES IN
NUT STYLE: HEXAGON
THREAD DIRECTION: RIGHT-HAND
WIDTH ACROSS FLATS: 0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL OVERALL
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
BEARING SURFACE TYPECHAMFERED OR WASHER FACED
THREAD QUANTITY PER INCH20
NOMINAL THREAD SIZE0.250 INCHES IN
NUT STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
WIDTH ACROSS FLATS0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
THREAD CLASS2B
NUT HEIGHT0.212 INCHES MINIMUM AND 0.226 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 28
21677-1060-016Interchangeable
interchangeable cross-reference
interchangeable
10-52930-06Interchangeable
interchangeable cross-reference
interchangeable
AESC2C250A00CH2A11Interchangeable
interchangeable cross-reference
interchangeable
9-00004501Interchangeable
interchangeable cross-reference
interchangeable
2202-900-006469Interchangeable
interchangeable cross-reference
interchangeable
91257A587Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 9-00003771?
9-00003771 is a NUT,PLAIN,HEXAGON.
What parts can replace 9-00003771?
There are 28 known substitutes for 9-00003771: 21677-1060-016, 10-52930-06, AESC2C250A00CH2A11 and 25 more. Substitute compatibility should be verified for your specific system.
Is 9-00003771 still available?
9-00003771 is currently cancelled.
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