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LM303-134 — BOLT,INTERNAL WRENCHING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

LM303-134: BOLT,INTERNAL WRENCHING.

The BOLT,INTERNAL WRENCHING is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, head_style: BEVEL-CONICAL, head_height: 0.310 INCHES NOMINAL IN, thread_class: 3A A, head_diameter: 0.526 INCHES NOMINAL IN, thread_length: 0.480 INCHES MINIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-953-4124, 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
LM303-134
NSN: 5306-00-953-4124
FSC: 5306 — Bolts
CAGE: 76005 — LORD CORPORATION DBA LORD CORP (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
head_styleBEVEL-CONICAL
head_height0.310 INCHES NOMINAL IN
thread_class3A A
head_diameter0.526 INCHES NOMINAL IN
thread_length0.480 INCHES MINIMUM IN
fastener_length3.190 INCHES NOMINAL IN
hardness_rating41.0 ROCKWELL C NOMINAL OVERALL
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
width_across_flats0.219 INCHES MINIMUM AND 0.221 INCHES MAXIMUM IN
internal_drive_styleHEXAGON
NSN5306-00-953-4124
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: LM303-134 · 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
•
WIDTH ACROSS FLATS: 0.219 INCHES MINIMUM AND 0.221 INCHES MAXIMUM IN
•
HEAD HEIGHT: 0.310 INCHES NOMINAL IN
•
FASTENER LENGTH: 3.190 INCHES NOMINAL IN
•
THREAD LENGTH: 0.480 INCHES MINIMUM IN
•
HARDNESS RATING: 41.0 ROCKWELL C NOMINAL OVERALL
•
NOMINAL THREAD DIAMETER: 0.312 INCHES IN
•
HEAD STYLE: BEVEL-CONICAL
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.219 INCHES MINIMUM AND 0.221 INCHES MAXIMUM IN
HEAD HEIGHT0.310 INCHES NOMINAL IN
FASTENER LENGTH3.190 INCHES NOMINAL IN
THREAD LENGTH0.480 INCHES MINIMUM IN
HARDNESS RATING41.0 ROCKWELL C NOMINAL OVERALL
NOMINAL THREAD DIAMETER0.312 INCHES IN
HEAD STYLEBEVEL-CONICAL
THREAD DIRECTIONRIGHT-HAND
SURFACE TREATMENTPASSIVATE OVERALL
MINIMUM TENSILE STRENGTH7100 POUNDS PER SQUARE INCH LBS
OTHER ITEMS IN FSC 5306 — Bolts
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5306-00-001-1276 5306-00-001-1949 5306-00-001-1988 5306-00-001-1989 5306-00-001-1990 5306-00-001-1991 5306-00-001-1993 5306-00-001-2017
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 LM303-134?
LM303-134 is a BOLT,INTERNAL WRENCHING.
What is the NSN for LM303-134?
LM303-134 is cataloged in the U.S. Government catalog under NSN 5306-00-953-4124. 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.