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548027 — BOLT,SQUARE NECK

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

548027: BOLT,SQUARE NECK.

The BOLT,SQUARE NECK is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: BUTTON, neck_width: 0.307 INCHES MINIMUM AND 0.324 INCHES MAXIMUM IN, head_height: 0.156 INCHES MINIMUM AND 0.176 INCHES MAXIMUM IN, neck_length: 0.156 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN, head_diameter: 0.688 INCHES MINIMUM AND 0.719 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-054-8027, 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
548027
NSN: 5306-00-054-8027
NIINs: 000548027, 010146801
FSC: 5306 — Bolts
CAGE: 21450 — ARMY WEAPONS COMMAND ATTN AMSWE-REE-S (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleBUTTON
neck_width0.307 INCHES MINIMUM AND 0.324 INCHES MAXIMUM IN
head_height0.156 INCHES MINIMUM AND 0.176 INCHES MAXIMUM IN
neck_length0.156 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN
head_diameter0.688 INCHES MINIMUM AND 0.719 INCHES MAXIMUM IN
fastener_length3.250 INCHES NOMINAL IN
nominal_thread_diameter0.312 INCHES IN
NSN5306-00-054-8027
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 548027 · 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
•
NECK LENGTH: 0.156 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN
•
HEAD HEIGHT: 0.156 INCHES NOMINAL IN
•
FASTENER LENGTH: 3.250 INCHES NOMINAL IN
•
THREAD LENGTH: 0.875 INCHES MINIMUM IN
•
HARDNESS RATING: 95.0 ROCKWELL B MAXIMUM OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-633,CANC FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.313 INCHES IN
•
FEATURES PROVIDED: SQUARE NUT
TECHNICAL CHARACTERISTICS
NECK LENGTH0.156 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN
HEAD HEIGHT0.156 INCHES NOMINAL IN
FASTENER LENGTH3.250 INCHES NOMINAL IN
THREAD LENGTH0.875 INCHES MINIMUM IN
HARDNESS RATING95.0 ROCKWELL B MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-633,CANC FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.313 INCHES IN
FEATURES PROVIDEDSQUARE NUT
HEAD STYLEBUTTON
THREAD DIRECTIONRIGHT-HAND
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 548027?
548027 is a BOLT,SQUARE NECK.
What is the NSN for 548027?
548027 is cataloged in the U.S. Government catalog under NSN 5306-00-054-8027. 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.