PartsTable
Technical Data Sheet
Download PDF

ST3M571-16D31 — BOLT,SHEAR

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

ST3M571-16D31: BOLT,SHEAR.

The BOLT,SHEAR is a the manufacturer industrial component. Key specifications include material: STEEL COMP XM-13 OVERALL, head_style: DOUBLE HEXAGON W/HOLE, grip_length: 1.927 INCHES MINIMUM AND 1.947 INCHES MAXIMUM IN, head_height: 0.913 INCHES MINIMUM AND 0.933 INCHES MAXIMUM IN, thread_class: 3A A, grip_diameter: 0.9990 INCHES MINIMUM AND 0.9995 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-148-2639, 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
ST3M571-16D31
NSN: 5306-01-148-2639
FSC: 5306 — Bolts
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialSTEEL COMP XM-13 OVERALL
head_styleDOUBLE HEXAGON W/HOLE
grip_length1.927 INCHES MINIMUM AND 1.947 INCHES MAXIMUM IN
head_height0.913 INCHES MINIMUM AND 0.933 INCHES MAXIMUM IN
thread_class3A A
grip_diameter0.9990 INCHES MINIMUM AND 0.9995 INCHES MAXIMUM IN
thread_length1.476 INCHES MINIMUM AND 1.526 INCHES MAXIMUM IN
fastener_length3.423 INCHES MINIMUM AND 3.453 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
width_between_flats1.052 INCHES MINIMUM AND 1.064 INCHES MAXIMUM IN
nominal_thread_diameter1.000 INCHES IN
NSN5306-01-148-2639
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: ST3M571-16D31 · 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: 0.212 INCHES MINIMUM AND 0.232 INCHES MAXIMUM IN
•
HEAD HEIGHT: 0.913 INCHES MINIMUM AND 0.933 INCHES MAXIMUM IN
•
FASTENER LENGTH: 3.423 INCHES MINIMUM AND 3.453 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
EXTENDED WASHER DIAMETER: 1.615 INCHES MINIMUM AND 1.625 INCHES MAXIMUM IN
•
THREAD LENGTH: 1.476 INCHES MINIMUM AND 1.526 INCHES MAXIMUM IN
•
SHANK UNTHREADED HOLE DIAMETER: 0.141 INCHES MINIMUM AND 0.146 INCHES MAXIMUM FIRST HOLE IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: 23-112 TYPE A,FSCM 76301 MFR REF SINGLE MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS
EXTENDED WASHER THICKNESS0.212 INCHES MINIMUM AND 0.232 INCHES MAXIMUM IN
HEAD HEIGHT0.913 INCHES MINIMUM AND 0.933 INCHES MAXIMUM IN
FASTENER LENGTH3.423 INCHES MINIMUM AND 3.453 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
EXTENDED WASHER DIAMETER1.615 INCHES MINIMUM AND 1.625 INCHES MAXIMUM IN
THREAD LENGTH1.476 INCHES MINIMUM AND 1.526 INCHES MAXIMUM IN
SHANK UNTHREADED HOLE DIAMETER0.141 INCHES MINIMUM AND 0.146 INCHES MAXIMUM FIRST HOLE IN
MATERIAL DOCUMENT AND CLASSIFICATION23-112 TYPE A,FSCM 76301 MFR REF SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER1.000 INCHES IN
HEAD STYLEDOUBLE HEXAGON W/HOLE
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 6
BM3326-16D31Reference document
Same NSN cross-reference
Reference document — Secondary reference
74328-16D31Reference document
Same NSN cross-reference
Reference document — Secondary reference
S11-1059-16D31Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
VS3060-16D31Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
S371-16D31Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
PBF23T-16D31Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
Ready to buy ST3M571-16D31?
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 ST3M571-16D31?
ST3M571-16D31 is a BOLT,SHEAR.
What parts can replace ST3M571-16D31?
There are 6 known substitutes for ST3M571-16D31: BM3326-16D31, 74328-16D31, S11-1059-16D31 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for ST3M571-16D31?
ST3M571-16D31 is cataloged in the U.S. Government catalog under NSN 5306-01-148-2639. 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 — ST3M571-16D31

✓ 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.