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Technical Data Sheet
PartsTable / COMPONENT / 1.000-8 UNC 2A 5.000 LG
1.000-8 UNC 2A 5.000 LG ✓ Verified by PartsTable
— · BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The 1.000-8 UNC 2A 5.000 LG is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-01-323-5536, 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
1.000-8 UNC 2A 5.000 LG
NSN: 5306-01-323-5536
FSC: 5306
CAGE: 80204 — AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED DBA AMERICAN NATIONAL STANDARDS INSTITUTE (USA)
SPECIFICATIONS
Part Number1.000-8 UNC 2A 5.000 LG
NSN5306-01-323-5536
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 1.000-8 UNC 2A 5.000 LG · 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 CLASS: 2A A
•
HEAD STYLE: HEXAGON
•
THREAD DIRECTION: RIGHT-HAND
•
FASTENER LENGTH: 5.000 INCHES NOMINAL IN
•
WIDTH BETWEEN FLATS: 1.575 INCHES MINIMUM AND 1.625 INCHES MAXIMUM IN
•
THREAD QUANTITY PER INCH: 8
•
MATERIAL: STEEL COMP 4140 OR STEEL COMP 4142 OR STEEL COMP 4145 OVERALL
•
THREAD LENGTH: 1.750 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS2A A
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
FASTENER LENGTH5.000 INCHES NOMINAL IN
WIDTH BETWEEN FLATS1.575 INCHES MINIMUM AND 1.625 INCHES MAXIMUM IN
THREAD QUANTITY PER INCH8
MATERIALSTEEL COMP 4140 OR STEEL COMP 4142 OR STEEL COMP 4145 OVERALL
THREAD LENGTH1.750 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER1.000 INCHES IN
HEAD HEIGHT0.591 INCHES MINIMUM AND 0.627 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
AN10H20AUpgraded Successor
successor cross-reference
successor
MIL-DTL-1222JUpgraded Successor
successor cross-reference
successor
180084Upgraded Successor
successor cross-reference
successor
MIL-S-1222Upgraded Successor
successor cross-reference
successor
MIL-DTL-1222Upgraded Successor
successor cross-reference
successor
PC186649Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1.000-8 UNC 2A 5.000 LG?
1.000-8 UNC 2A 5.000 LG is a 1.000-8 UNC 2A 5.000 LG.
What parts can replace 1.000-8 UNC 2A 5.000 LG?
There are 22 known substitutes for 1.000-8 UNC 2A 5.000 LG: AN10H20A, MIL-DTL-1222J, 180084 and 19 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1.000-8 UNC 2A 5.000 LG?
1.000-8 UNC 2A 5.000 LG is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-01-323-5536. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026