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Technical Data Sheet
PartsTable / COMPONENT / 5003977
5003977 ✓ 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 OVERALL, hole_type: DRILLED, head_style: HEXAGON, head_height: 0.156 INCHES NOMINAL IN, thread_class: 3A A, hole_diameter: 0.047 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-01-130-0587, 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
5003977
NSN: 5306-01-130-0587
FSC: 5306
CAGE: 6L817 — NATIONAL MACHINE COMPANY DBA NMG AEROSPACE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_typeDRILLED
head_styleHEXAGON
head_height0.156 INCHES NOMINAL IN
thread_class3A A
hole_diameter0.047 INCHES NOMINAL IN
hole_quantity3
thread_length0.250 INCHES NOMINAL IN
fastener_length0.250 INCHES NOMINAL IN
style_designatorCONCENTRIC HOLE UNTHREADED
thread_directionRIGHT-HAND
width_between_flats0.312 INCHES NOMINAL IN
NSN5306-01-130-0587
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 5003977 · 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
•
HOLE CONFIGURATION STYLE: HEXAGON CORNERS
•
HEAD HEIGHT: 0.156 INCHES NOMINAL IN
•
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
•
HOLE QUANTITY: 3
•
MATERIAL: STEEL OVERALL
•
STYLE DESIGNATOR: CONCENTRIC HOLE UNTHREADED
•
THREAD LENGTH: 0.250 INCHES NOMINAL IN
•
HOLE TYPE: DRILLED
TECHNICAL CHARACTERISTICS (FLIS)
HOLE CONFIGURATION STYLEHEXAGON CORNERS
HEAD HEIGHT0.156 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.250 INCHES IN
HOLE QUANTITY3
MATERIALSTEEL OVERALL
STYLE DESIGNATORCONCENTRIC HOLE UNTHREADED
THREAD LENGTH0.250 INCHES NOMINAL IN
HOLE TYPEDRILLED
WIDTH BETWEEN FLATS0.312 INCHES NOMINAL IN
HEAD STYLEHEXAGON
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
504Z11CQ3Interchangeable
interchangeable cross-reference
interchangeable
5062071Interchangeable
interchangeable cross-reference
interchangeable
9000-498Interchangeable
interchangeable cross-reference
interchangeable
AA59649-093AInterchangeable
interchangeable cross-reference
interchangeable
70477Interchangeable
interchangeable cross-reference
interchangeable
15126Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 5003977?
5003977 is a BOLT,INTERNALLY RELIEVED BODY.
What parts can replace 5003977?
There are 9 known substitutes for 5003977: 504Z11CQ3, 5062071, 9000-498 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 5003977?
5003977 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-01-130-0587. 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