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ASME B18.2 — PIN,STRAIGHT,HEADLESS

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

ASME B18.2: PIN,STRAIGHT,HEADLESS.

The PIN,STRAIGHT,HEADLESS is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, special_features: COLOR BLACK, surface_treatment: ZINC OVERALL, pin_overall_length: 1.000 INCHES NOMINAL IN, pin_overall_diameter: 0.2500 INCHES NOMINAL IN, end_item_identification: END ITEM NSN: 1025-99-411-1447 M777E1 155MM HOWITZER MM. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-473-7123, 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
ASME B18.2
NSN: 5305-01-473-7123
NIINs: 014737123, 015284238
FSC: 5305 — Screws
CAGE: 05047 — THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS (USA)
SPECIFICATIONS
materialSTEEL OVERALL
special_featuresCOLOR BLACK
surface_treatmentZINC OVERALL
pin_overall_length1.000 INCHES NOMINAL IN
pin_overall_diameter0.2500 INCHES NOMINAL IN
end_item_identificationEND ITEM NSN: 1025-99-411-1447 M777E1 155MM HOWITZER MM
NSN5305-01-473-7123
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: ASME B18.2 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
THREAD LENGTH: 0.500 INCHES NOMINAL IN
•
NOMINAL THREAD DIAMETER: 0.312 INCHES IN
•
THREAD DIRECTION: RIGHT-HAND
•
THREAD CLASS: 2A A
•
MATERIAL: STEEL OVERALL
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
TECHNICAL CHARACTERISTICS
THREAD LENGTH0.500 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.312 INCHES IN
THREAD DIRECTIONRIGHT-HAND
SPECIAL FEATURESSELF LOCKING
THREAD CLASS2A A
MATERIALSTEEL OVERALL
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
SUBSTITUTES & CROSS-REFERENCES 1
S300NA42CAG10354BNPF3Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is ASME B18.2?
ASME B18.2 is a PIN,STRAIGHT,HEADLESS.
What parts can replace ASME B18.2?
There is 1 known substitute for ASME B18.2: S300NA42CAG10354BNPF3. Substitute compatibility should be verified for your specific system.
What is the NSN for ASME B18.2?
ASME B18.2 is cataloged in the U.S. Government catalog under NSN 5305-01-473-7123. 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.