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1939970 — BOLT,EXTERNALLY RELIEVED BODY

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

1939970: BOLT,EXTERNALLY RELIEVED BODY.

The BOLT,EXTERNALLY RELIEVED BODY is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1008 OVERALL, head_style: HEXAGON EXTENDED WASHER, head_height: 0.256 INCHES NOMINAL IN, thread_class: 2A A, thread_length: 0.800 INCHES MINIMUM AND 0.920 INCHES MAXIMUM IN, fastener_length: 5.870 INCHES MINIMUM AND 5.930 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-879-4603, 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
1939970
NSN: 5306-00-879-4603
FSC: 5306 — Bolts
CAGE: 1LW55 — BORGWARNER PDS (ANDERSON), L.L.C. (USA)
SPECIFICATIONS
materialSTEEL COMP 1008 OVERALL
head_styleHEXAGON EXTENDED WASHER
head_height0.256 INCHES NOMINAL IN
thread_class2A A
thread_length0.800 INCHES MINIMUM AND 0.920 INCHES MAXIMUM IN
fastener_length5.870 INCHES MINIMUM AND 5.930 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
surface_treatmentCADMIUM OVERALL
width_between_flats0.363 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
nominal_thread_diameter0.250 INCHES IN
extended_washer_diameter0.500 INCHES NOMINAL IN
first_diameter_from_head0.260 INCHES NOMINAL IN
NSN5306-00-879-4603
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 1939970 · 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
•
EXTENDED WASHER THICKNESS: 0.032 INCHES NOMINAL IN
•
HEAD HEIGHT: 0.256 INCHES NOMINAL IN
•
FASTENER LENGTH: 5.870 INCHES MINIMUM AND 5.930 INCHES MAXIMUM IN
•
EXTENDED WASHER DIAMETER: 0.500 INCHES NOMINAL IN
•
THREAD LENGTH: 0.800 INCHES MINIMUM AND 0.920 INCHES MAXIMUM IN
•
FIRST DIAMETER FROM HEAD: 0.260 INCHES NOMINAL IN
•
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER: 5.010 INCHES MINIMUM AND 5.070 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
TECHNICAL CHARACTERISTICS
EXTENDED WASHER THICKNESS0.032 INCHES NOMINAL IN
HEAD HEIGHT0.256 INCHES NOMINAL IN
FASTENER LENGTH5.870 INCHES MINIMUM AND 5.930 INCHES MAXIMUM IN
EXTENDED WASHER DIAMETER0.500 INCHES NOMINAL IN
THREAD LENGTH0.800 INCHES MINIMUM AND 0.920 INCHES MAXIMUM IN
FIRST DIAMETER FROM HEAD0.260 INCHES NOMINAL IN
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER5.010 INCHES MINIMUM AND 5.070 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.250 INCHES IN
HEAD STYLEHEXAGON EXTENDED WASHER
THREAD DIRECTIONRIGHT-HAND
SUBSTITUTES & CROSS-REFERENCES 2
88567Reference document
Same NSN cross-reference
Reference document — Secondary reference
47357Reference 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 1939970?
1939970 is a BOLT,EXTERNALLY RELIEVED BODY.
What parts can replace 1939970?
There are 2 known substitutes for 1939970: 88567, 47357. Substitute compatibility should be verified for your specific system.
What is the NSN for 1939970?
1939970 is cataloged in the U.S. Government catalog under NSN 5306-00-879-4603. 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.