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A216307 — NUT,PLAIN,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

A216307: NUT,PLAIN,HEXAGON.

The NUT,PLAIN,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1020 OVERALL, nut_style: HEXAGON, nut_height: 0.625 INCHES NOMINAL IN, thread_class: 2B, thread_series: UNF, thread_direction: LEFT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-350-2859, 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
A216307
NSN: 5310-00-350-2859
FSC: 5310 — Nuts and Washers
CAGE: 00000
SPECIFICATIONS
materialSTEEL COMP 1020 OVERALL
nut_styleHEXAGON
nut_height0.625 INCHES NOMINAL IN
thread_class2B
thread_seriesUNF
thread_directionLEFT-HAND
width_across_flats1.812 INCHES NOMINAL IN
nominal_thread_size1.250 INCHES IN
bearing_surface_typeWASHER FACED
thread_quantity_per_inch12
material_document_and_classification66 FED STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-350-2859
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: A216307 · 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
•
WIDTH ACROSS FLATS: 1.812 INCHES NOMINAL IN
•
THREAD SERIES: UNF
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: LEFT-HAND
•
NOMINAL THREAD SIZE: 1.250 INCHES IN
•
NUT HEIGHT: 0.625 INCHES NOMINAL IN
•
NUT STYLE: HEXAGON
•
THREAD CLASS: 2B
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS1.812 INCHES NOMINAL IN
THREAD SERIESUNF
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONLEFT-HAND
NOMINAL THREAD SIZE1.250 INCHES IN
NUT HEIGHT0.625 INCHES NOMINAL IN
NUT STYLEHEXAGON
THREAD CLASS2B
THREAD QUANTITY PER INCH12
MATERIALSTEEL COMP 1020 OVERALL
SUBSTITUTES & CROSS-REFERENCES 2
395221Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
N44311AReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A216307?
A216307 is a NUT,PLAIN,HEXAGON.
What parts can replace A216307?
There are 2 known substitutes for A216307: 395221, N44311A. Substitute compatibility should be verified for your specific system.
What is the NSN for A216307?
A216307 is cataloged in the U.S. Government catalog under NSN 5310-00-350-2859. 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.