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181396 — SCREW,CAP,HEXAGON HEAD

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

181396: SCREW,CAP,HEXAGON HEAD.

The SCREW,CAP,HEXAGON HEAD is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: HEXAGON, head_height: 0.281 INCHES NOMINAL IN, thread_class: 2A A, thread_length: 1.125 INCHES MAXIMUM IN, fastener_length: 1.125 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-018-1396, 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
181396
NSN: 5305-00-018-1396
FSC: 5305 — Screws
CAGE: 72582 — ROLLS-ROYCE SOLUTIONS AMERICA INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEXAGON
head_height0.281 INCHES NOMINAL IN
thread_class2A A
thread_length1.125 INCHES MAXIMUM IN
fastener_length1.125 INCHES NOMINAL IN
hardness_rating23.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
width_between_flats0.625 INCHES NOMINAL IN
nominal_thread_diameter0.438 INCHES IN
thread_quantity_per_inch20
thread_series_designatorUNF
NSN5305-00-018-1396
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 181396 · 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: 0.281 INCHES NOMINAL IN
•
FASTENER LENGTH: 1.125 INCHES NOMINAL IN
•
THREAD LENGTH: 1.125 INCHES MAXIMUM IN
•
HARDNESS RATING: 23.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM OVERALL
•
NOMINAL THREAD DIAMETER: 0.438 INCHES IN
•
HEAD STYLE: HEXAGON
•
THREAD DIRECTION: RIGHT-HAND
•
DEPARTURE FROM CITED DESIGNATOR: AS MODIFIED BY LENGTH
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.281 INCHES NOMINAL IN
FASTENER LENGTH1.125 INCHES NOMINAL IN
THREAD LENGTH1.125 INCHES MAXIMUM IN
HARDNESS RATING23.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM OVERALL
NOMINAL THREAD DIAMETER0.438 INCHES IN
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
DEPARTURE FROM CITED DESIGNATORAS MODIFIED BY LENGTH
WIDTH BETWEEN FLATS0.625 INCHES NOMINAL IN
NONDEFINITIVE SPEC/STD DATA2 TYPE AND 10P STYLE AND 5 GRADE
SUBSTITUTES & CROSS-REFERENCES 1
FFS85TYPE2STYLE10PGRADE5Reference document
Same NSN cross-reference
Reference document — Identification reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 181396?
181396 is a SCREW,CAP,HEXAGON HEAD.
What parts can replace 181396?
There is 1 known substitute for 181396: FFS85TYPE2STYLE10PGRADE5. Substitute compatibility should be verified for your specific system.
What is the NSN for 181396?
181396 is cataloged in the U.S. Government catalog under NSN 5305-00-018-1396. 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.