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54267-4-6 — SCREW,SHOULDER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

54267-4-6: SCREW,SHOULDER.

The SCREW,SHOULDER is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4140 OR STEEL COMP 4340 OR STEEL COMP 8740 OR STEEL COMP 8735 OR STEEL COMP 4130 OVERALL, head_style: FLAT COUNTERSUNK UNDERCUT, head_height: 0.0652 INCHES MINIMUM AND 0.0672 INCHES MAXIMUM IN, thread_class: 3A A, head_diameter: 0.501 INCHES MINIMUM AND 0.506 INCHES MAXIMUM IN, thread_length: 0.443 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-331-4851, 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
54267-4-6
NSN: 5305-00-331-4851
FSC: 5305 — Screws
CAGE: 56878 — SPS TECHNOLOGIES, LLC DBA PB FASTENERS (USA)
SPECIFICATIONS
materialSTEEL COMP 4140 OR STEEL COMP 4340 OR STEEL COMP 8740 OR STEEL COMP 8735 OR STEEL COMP 4130 OVERALL
head_styleFLAT COUNTERSUNK UNDERCUT
head_height0.0652 INCHES MINIMUM AND 0.0672 INCHES MAXIMUM IN
thread_class3A A
head_diameter0.501 INCHES MINIMUM AND 0.506 INCHES MAXIMUM IN
thread_length0.443 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
shoulder_shapeROUND FIRST SHOULDER
fastener_length0.828 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN
shoulder_length0.264 INCHES MINIMUM AND 0.286 INCHES MAXIMUM FIRST SHOULDER IN
special_featuresFURNISHED WITH ONE RUBBER O RING
thread_directionRIGHT-HAND
countersink_angle100.0 DEGREES NOMINAL
NSN5305-00-331-4851
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 54267-4-6 · 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: 0.0652 INCHES MINIMUM AND 0.0672 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.828 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN
•
SHOULDER LENGTH: 0.264 INCHES MINIMUM AND 0.286 INCHES MAXIMUM FIRST SHOULDER IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
SHOULDER DIAMETER: 0.2641 INCHES MINIMUM AND 0.2651 INCHES MAXIMUM FIRST SHOULDER IN
•
THREAD LENGTH: 0.443 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
•
SHOULDER SHAPE: ROUND FIRST SHOULDER
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5000 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 3RD MATERIAL RESPONSE OR MIL-S-6098 MIL SPEC 4TH MATERIAL RESPONSE OR MIL-S-6758 MIL SPEC 5TH MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.0652 INCHES MINIMUM AND 0.0672 INCHES MAXIMUM IN
FASTENER LENGTH0.828 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN
SHOULDER LENGTH0.264 INCHES MINIMUM AND 0.286 INCHES MAXIMUM FIRST SHOULDER IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SHOULDER DIAMETER0.2641 INCHES MINIMUM AND 0.2651 INCHES MAXIMUM FIRST SHOULDER IN
THREAD LENGTH0.443 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
SHOULDER SHAPEROUND FIRST SHOULDER
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5000 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 3RD MATERIAL RESPONSE OR MIL-S-6098 MIL SPEC 4TH MATERIAL RESPONSE OR MIL-S-6758 MIL SPEC 5TH MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.250 INCHES IN
HEAD STYLEFLAT COUNTERSUNK UNDERCUT
OTHER ITEMS IN FSC 5305 — Screws
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5305-00-000-0094 5305-00-000-1397 5305-00-000-2625 5305-00-000-3669 5305-00-000-3830 5305-00-000-3831
SUBSTITUTES & CROSS-REFERENCES 2
HT409A4-6Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
HT41UA6Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 54267-4-6?
54267-4-6 is a SCREW,SHOULDER.
What parts can replace 54267-4-6?
There are 2 known substitutes for 54267-4-6: HT409A4-6, HT41UA6. Substitute compatibility should be verified for your specific system.
What is the NSN for 54267-4-6?
54267-4-6 is cataloged in the U.S. Government catalog under NSN 5305-00-331-4851. 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.