PartsTable
Technical Data Sheet
USAF325B6 ✓ 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: COPPER ALLOY OVERALL, nut_style: HEXAGON, nut_height: 0.320 INCHES MINIMUM AND 0.337 INCHES MAXIMUM IN, thread_class: 2B, thread_series: UNF, thread_direction: RIGHT-HAND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-176-8147, 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
USAF325B6
NSN: 5310-00-176-8147
FSC: 5310
CAGE: 80049 — DEPARTMENT OF THE AIR FORCE (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
nut_styleHEXAGON
nut_height0.320 INCHES MINIMUM AND 0.337 INCHES MAXIMUM IN
thread_class2B
thread_seriesUNF
thread_directionRIGHT-HAND
width_across_flats0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
nominal_thread_size0.375 INCHES IN
bearing_surface_typeCHAMFERED OR WASHER FACED
thread_quantity_per_inch24
nondefinitive_spec/std_dataA AND 2 TYPE
NSN5310-00-176-8147
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: USAF325B6 · 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
THREAD QUANTITY PER INCH: 24
THREAD SERIES: UNF
BEARING SURFACE TYPE: CHAMFERED OR WASHER FACED
NOMINAL THREAD SIZE: 0.375 INCHES IN
THREAD CLASS: 2B
NUT STYLE: HEXAGON
NUT HEIGHT: 0.320 INCHES MINIMUM AND 0.337 INCHES MAXIMUM IN
NONDEFINITIVE SPEC/STD DATA: A AND 2 TYPE
TECHNICAL CHARACTERISTICS (FLIS)
THREAD QUANTITY PER INCH24
THREAD SERIESUNF
BEARING SURFACE TYPECHAMFERED OR WASHER FACED
NOMINAL THREAD SIZE0.375 INCHES IN
THREAD CLASS2B
NUT STYLEHEXAGON
NUT HEIGHT0.320 INCHES MINIMUM AND 0.337 INCHES MAXIMUM IN
NONDEFINITIVE SPEC/STD DATAA AND 2 TYPE
MATERIALCOPPER ALLOY OVERALL
WIDTH ACROSS FLATS0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
571242Interchangeable
interchangeable cross-reference
interchangeable
FFB571TYPEA2Interchangeable
interchangeable cross-reference
interchangeable
MILB857Interchangeable
interchangeable cross-reference
interchangeable
43-N-3938-4610Interchangeable
interchangeable cross-reference
interchangeable
H114AInterchangeable
interchangeable cross-reference
interchangeable
FFN836GRADEBTYPE3STYLE4Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy USAF325B6?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is USAF325B6?
USAF325B6 is a NUT,PLAIN,HEXAGON.
What parts can replace USAF325B6?
There are 19 known substitutes for USAF325B6: 571242, FFB571TYPEA2, MILB857 and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for USAF325B6?
USAF325B6 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-176-8147. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — USAF325B6