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3M261-5-23 — BOLT,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

3M261-5-23: BOLT,MACHINE.

The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: DOUBLE HEXAGON, grip_length: 1.438 INCHES NOMINAL IN, head_height: 0.187 INCHES NOMINAL IN, thread_class: 3A A, thread_length: 0.467 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-557-4702, 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
3M261-5-23
NSN: 5306-00-557-4702
FSC: 5306 — Bolts
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleDOUBLE HEXAGON
grip_length1.438 INCHES NOMINAL IN
head_height0.187 INCHES NOMINAL IN
thread_class3A A
thread_length0.467 INCHES NOMINAL IN
fastener_length1.905 INCHES NOMINAL IN
thread_directionRIGHT-HAND
features_providedUNFINISHED HEAD
surface_treatmentCADMIUM OVERALL
width_between_flats0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN
nominal_thread_diameter0.312 INCHES IN
NSN5306-00-557-4702
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 3M261-5-23 · 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: 0.187 INCHES NOMINAL IN
•
FASTENER LENGTH: 1.905 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MAC PS13145,MCDONNELL DOUGLAS CORP MFR REF SINGLE TREATMENT RESPONSE OVERALL
•
THREAD LENGTH: 0.467 INCHES NOMINAL IN
•
NOMINAL THREAD DIAMETER: 0.312 INCHES IN
•
FEATURES PROVIDED: UNFINISHED HEAD
•
HEAD STYLE: DOUBLE HEXAGON
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.187 INCHES NOMINAL IN
FASTENER LENGTH1.905 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMAC PS13145,MCDONNELL DOUGLAS CORP MFR REF SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH0.467 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.312 INCHES IN
FEATURES PROVIDEDUNFINISHED HEAD
HEAD STYLEDOUBLE HEXAGON
THREAD DIRECTIONRIGHT-HAND
GRIP LENGTH1.438 INCHES NOMINAL IN
WIDTH BETWEEN FLATS0.492 INCHES MINIMUM AND 0.502 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 4
VS2938-5-23Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
HS2601-5Z23Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
66051-5-23Reference document
Same NSN cross-reference
Reference document — Secondary reference
AIC261M5-23Same 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
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FREQUENTLY ASKED QUESTIONS
What is 3M261-5-23?
3M261-5-23 is a BOLT,MACHINE.
What parts can replace 3M261-5-23?
There are 4 known substitutes for 3M261-5-23: VS2938-5-23, HS2601-5Z23, 66051-5-23 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 3M261-5-23?
3M261-5-23 is cataloged in the U.S. Government catalog under NSN 5306-00-557-4702. This indicates validated use in U.S. government and defense supply chains.
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