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PartsTable / COMPONENT / A34319
A34319 ✓ 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 BOLT,INTERNALLY RELIEVED BODY is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1117 OVERALL, head_style: HEXAGON, head_height: 0.125 INCHES NOMINAL IN, thread_length: 0.312 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN, fastener_length: 0.406 INCHES NOMINAL IN, special_features: NOM THD DIA 0.438; NONSTD THD PITCH DIA 0.4014/P0.4050; THD QTY PER INCH 20. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-01-044-7466, 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
A34319
NSN: 5306-01-044-7466
FSC: 5306
CAGE: 03990 — INGERSOLL-RAND COMPANY DBA INGERSOLL-RAND (USA)
SPECIFICATIONS
materialSTEEL COMP 1117 OVERALL
head_styleHEXAGON
head_height0.125 INCHES NOMINAL IN
thread_length0.312 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN
fastener_length0.406 INCHES NOMINAL IN
special_featuresNOM THD DIA 0.438; NONSTD THD PITCH DIA 0.4014/P0.4050; THD QTY PER INCH 20
style_designatorCONCENTRIC HOLE UNTHREADED
thread_directionRIGHT-HAND
features_providedCASEHARDENED
surface_treatmentOXIDE OVERALL
width_between_flats0.750 INCHES NOMINAL IN
nominal_thread_diameter0.250 INCHES IN
NSN5306-01-044-7466
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: A34319 · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: 57-0-2,TY 3 CL B MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
HEAD HEIGHT: 0.125 INCHES NOMINAL IN
•
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
•
MATERIAL: STEEL COMP 1117 OVERALL
•
SURFACE TREATMENT: OXIDE OVERALL
•
THREAD SERIES DESIGNATOR: UNF
•
STYLE DESIGNATOR: CONCENTRIC HOLE UNTHREADED
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION57-0-2,TY 3 CL B MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
HEAD HEIGHT0.125 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.250 INCHES IN
MATERIALSTEEL COMP 1117 OVERALL
SURFACE TREATMENTOXIDE OVERALL
THREAD SERIES DESIGNATORUNF
STYLE DESIGNATORCONCENTRIC HOLE UNTHREADED
SPECIAL FEATURESNOM THD DIA 0.438; NONSTD THD PITCH DIA 0.4014/P0.4050; THD QTY PER INCH 20
THREAD DIRECTIONRIGHT-HAND
FASTENER LENGTH0.406 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
JH30-33Interchangeable
interchangeable cross-reference
interchangeable
9130361Interchangeable
interchangeable cross-reference
interchangeable
E1EInterchangeable
interchangeable cross-reference
interchangeable
10121852Interchangeable
interchangeable cross-reference
interchangeable
8800 PIECE 38Interchangeable
interchangeable cross-reference
interchangeable
352250020275Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A34319?
A34319 is a BOLT,INTERNALLY RELIEVED BODY.
What parts can replace A34319?
There are 8 known substitutes for A34319: JH30-33, 9130361, E1E and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A34319?
A34319 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-01-044-7466. 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