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H321597 — NUT,PLAIN,ROUND

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

H321597: NUT,PLAIN,ROUND.

The NUT,PLAIN,ROUND is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: ROUND, nut_diameter: 1.125 INCHES NOMINAL IN, nut_thickness: 0.344 INCHES NOMINAL IN, thread_series: UNS, thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-185-6484, 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
H321597
NSN: 5310-00-185-6484
FSC: 5310 — Nuts and Washers
CAGE: 1ML14 — BRINKLEY TECHNOLOGY GROUP LLC DBA HERCULES MANUFACTURING (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleROUND
nut_diameter1.125 INCHES NOMINAL IN
nut_thickness0.344 INCHES NOMINAL IN
thread_seriesUNS
thread_directionRIGHT-HAND
drive_point_depth0.094 INCHES NOMINAL IN
drive_point_width0.125 INCHES NOMINAL IN
nominal_thread_size0.664 INCHES IN
drive_point_quantity4
thread_pitch_diameters+0.6437 TO 0.6467 INCHES IN
thread_quantity_per_inch32
NSN5310-00-185-6484
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: H321597 · 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 SERIES: UNS
•
THREAD PITCH DIAMETERS: +0.6437 TO 0.6467 INCHES IN
•
DRIVE POINT WIDTH: 0.125 INCHES NOMINAL IN
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.664 INCHES IN
•
NUT DIAMETER: 1.125 INCHES NOMINAL IN
•
DRIVE POINT DEPTH: 0.094 INCHES NOMINAL IN
•
NUT THICKNESS: 0.344 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
THREAD SERIESUNS
THREAD PITCH DIAMETERS+0.6437 TO 0.6467 INCHES IN
DRIVE POINT WIDTH0.125 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.664 INCHES IN
NUT DIAMETER1.125 INCHES NOMINAL IN
DRIVE POINT DEPTH0.094 INCHES NOMINAL IN
NUT THICKNESS0.344 INCHES NOMINAL IN
DRIVE POINT QUANTITY4
NUT STYLEROUND
SUBSTITUTES & CROSS-REFERENCES 9
127706Reference document
Same NSN cross-reference
Reference document — Secondary reference
H323772PC18Reference document
Same NSN cross-reference
Reference document — Secondary reference
12Z335-4Reference document
Same NSN cross-reference
Reference document — Secondary reference
A1034PC9Reference document
Same NSN cross-reference
Reference document — Secondary reference
A2045PC9Reference document
Same NSN cross-reference
Reference document — Secondary reference
A1249PC9Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is H321597?
H321597 is a NUT,PLAIN,ROUND.
What parts can replace H321597?
There are 9 known substitutes for H321597: 127706, H323772PC18, 12Z335-4 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for H321597?
H321597 is cataloged in the U.S. Government catalog under NSN 5310-00-185-6484. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.