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03273-01 — SCREW,CAP,HEXAGON HEAD

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

03273-01: SCREW,CAP,HEXAGON HEAD.

The SCREW,CAP,HEXAGON HEAD is a the manufacturer industrial component. Key specifications include material: STEEL PROPERTY CLASS 18.8 OVERALL, head_style: HEXAGON, head_height: 0.156 INCHES NOMINAL IN, thread_class: 2A A, thread_length: 4.250 INCHES NOMINAL IN, fastener_length: 4.250 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-552-0691, 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
03273-01
NSN: 5305-01-552-0691
FSC: 5305 — Screws
CAGE: 14153 — DEFENSE LOGISTICS AGENCY DBA DEFENSE SUPPLY CENTER PHILADELPHIA (USA)
SPECIFICATIONS
materialSTEEL PROPERTY CLASS 18.8 OVERALL
head_styleHEXAGON
head_height0.156 INCHES NOMINAL IN
thread_class2A A
thread_length4.250 INCHES NOMINAL IN
fastener_length4.250 INCHES NOMINAL IN
hardness_rating70.0 ROCKWELL B MINIMUM OVERALL
thread_directionRIGHT-HAND
width_between_flats0.437 INCHES NOMINAL IN
nominal_thread_diameter0.250 INCHES IN
minimum_tensile_strength70000 POUNDS PER SQUARE INCH LBS
thread_quantity_per_inch20
NSN5305-01-552-0691
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 03273-01 · 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: 0.156 INCHES NOMINAL IN
•
FASTENER LENGTH: 4.250 INCHES NOMINAL IN
•
THREAD LENGTH: 4.250 INCHES NOMINAL IN
•
HARDNESS RATING: 70.0 ROCKWELL B MINIMUM OVERALL
•
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
•
HEAD STYLE: HEXAGON
•
THREAD DIRECTION: RIGHT-HAND
•
WIDTH BETWEEN FLATS: 0.437 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.156 INCHES NOMINAL IN
FASTENER LENGTH4.250 INCHES NOMINAL IN
THREAD LENGTH4.250 INCHES NOMINAL IN
HARDNESS RATING70.0 ROCKWELL B MINIMUM OVERALL
NOMINAL THREAD DIAMETER0.250 INCHES IN
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS0.437 INCHES NOMINAL IN
MINIMUM TENSILE STRENGTH70000 POUNDS PER SQUARE INCH LBS
PART NAME ASSIGNED BY CONTROLLING AGENCYHEX HEAD CAP SCREW
OTHER ITEMS IN FSC 5305 — Screws
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5305-00-001-5016 5305-00-001-9160 5305-00-001-9629 5305-00-001-9742 5305-00-001-9768 5305-00-003-4306 5305-00-003-6694 5305-00-003-6753
SUBSTITUTES & CROSS-REFERENCES 1
92240A559Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 03273-01?
03273-01 is a SCREW,CAP,HEXAGON HEAD.
What parts can replace 03273-01?
There is 1 known substitute for 03273-01: 92240A559. Substitute compatibility should be verified for your specific system.
What is the NSN for 03273-01?
03273-01 is cataloged in the U.S. Government catalog under NSN 5305-01-552-0691. 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.