PartsTable
Technical Data Sheet
Download PDF

71657H-7-2300 — BOLT,EXTERNALLY RELIEVED BODY

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

71657H-7-2300: BOLT,EXTERNALLY RELIEVED BODY.

The BOLT,EXTERNALLY RELIEVED BODY is a the manufacturer industrial component. Key specifications include material: STEEL COMP H11 OVERALL, head_style: HEXAGON, head_height: 0.183 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN, thread_class: 3A A, thread_length: 0.324 INCHES MINIMUM AND 0.344 INCHES MAXIMUM IN, fastener_length: 2.728 INCHES MINIMUM AND 2.748 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-336-6302, 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
71657H-7-2300
NSN: 5306-01-336-6302
FSC: 5306 — Bolts
CAGE: 56878 — SPS TECHNOLOGIES, LLC DBA PB FASTENERS (USA)
SPECIFICATIONS
materialSTEEL COMP H11 OVERALL
head_styleHEXAGON
head_height0.183 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
thread_class3A A
thread_length0.324 INCHES MINIMUM AND 0.344 INCHES MAXIMUM IN
fastener_length2.728 INCHES MINIMUM AND 2.748 INCHES MAXIMUM IN
special_featuresDRY FILM LUBE ON GRIP AREA ONLY
thread_directionRIGHT-HAND
width_between_flats0.553 INCHES MINIMUM AND 0.563 INCHES MAXIMUM IN
end_item_identificationPACER DAWN
nominal_thread_diameter0.3750 INCHES IN
first_diameter_from_head0.437 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
NSN5306-01-336-6302
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 71657H-7-2300 · 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
•
HEAD HEIGHT: 0.183 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
•
FASTENER LENGTH: 2.728 INCHES MINIMUM AND 2.748 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.324 INCHES MINIMUM AND 0.344 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 6487 (H-11) ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
FIRST DIAMETER FROM HEAD: 0.437 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.3750 INCHES IN
•
HEAD STYLE: HEXAGON
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.183 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
FASTENER LENGTH2.728 INCHES MINIMUM AND 2.748 INCHES MAXIMUM IN
THREAD LENGTH0.324 INCHES MINIMUM AND 0.344 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 6487 (H-11) ASSN STD SINGLE MATERIAL RESPONSE OVERALL
FIRST DIAMETER FROM HEAD0.437 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.3750 INCHES IN
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS0.553 INCHES MINIMUM AND 0.563 INCHES MAXIMUM IN
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER2.290 INCHES MINIMUM AND 2.310 INCHES MAXIMUM IN
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 1
5306-001-7D2300Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
Ready to buy 71657H-7-2300?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 71657H-7-2300?
71657H-7-2300 is a BOLT,EXTERNALLY RELIEVED BODY.
What parts can replace 71657H-7-2300?
There is 1 known substitute for 71657H-7-2300: 5306-001-7D2300. Substitute compatibility should be verified for your specific system.
What is the NSN for 71657H-7-2300?
71657H-7-2300 is cataloged in the U.S. Government catalog under NSN 5306-01-336-6302. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 71657H-7-2300

✓ 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.