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13377-A — BOLT,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

13377-A: BOLT,MACHINE.

The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: HEXAGON EXTENDED WASHER, head_height: 1.312 INCHES NOMINAL IN, thread_class: 2A A, thread_length: 2.187 INCHES NOMINAL IN, fastener_length: 4.250 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-201-0438, 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
13377-A
NSN: 5306-01-201-0438
FSC: 5306 — Bolts
CAGE: 27046 — PROPULSION SYSTEMS, INC. (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEXAGON EXTENDED WASHER
head_height1.312 INCHES NOMINAL IN
thread_class2A A
thread_length2.187 INCHES NOMINAL IN
fastener_length4.250 INCHES NOMINAL IN
thread_directionRIGHT-HAND
width_between_flats1.812 INCHES NOMINAL IN
end_item_identificationUSED ON PROPELLER BLADE ABOARD 210 FT "A" CLASS COAST GUARD VESSELS FT
nominal_thread_diameter1.375 INCHES IN
extended_washer_diameter2.562 INCHES NOMINAL IN
thread_quantity_per_inch8
NSN5306-01-201-0438
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 13377-A · 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: 2.062 INCHES NOMINAL IN
•
HEAD HEIGHT: 1.312 INCHES NOMINAL IN
•
FASTENER LENGTH: 4.250 INCHES NOMINAL IN
•
EXTENDED WASHER DIAMETER: 2.562 INCHES NOMINAL IN
•
THREAD LENGTH: 2.187 INCHES NOMINAL IN
•
NOMINAL THREAD DIAMETER: 1.375 INCHES IN
•
HEAD STYLE: HEXAGON EXTENDED WASHER
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
EXTENDED WASHER THICKNESS2.062 INCHES NOMINAL IN
HEAD HEIGHT1.312 INCHES NOMINAL IN
FASTENER LENGTH4.250 INCHES NOMINAL IN
EXTENDED WASHER DIAMETER2.562 INCHES NOMINAL IN
THREAD LENGTH2.187 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER1.375 INCHES IN
HEAD STYLEHEXAGON EXTENDED WASHER
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS1.812 INCHES NOMINAL IN
THREAD CLASS2A A
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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 13377-A?
13377-A is a BOLT,MACHINE.
What is the NSN for 13377-A?
13377-A is cataloged in the U.S. Government catalog under NSN 5306-01-201-0438. 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.