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NASM51575 — SCREW,SHOULDER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

NASM51575: SCREW,SHOULDER.

The SCREW,SHOULDER is a the manufacturer industrial component. Key specifications include material: STEEL COMP 304 OR STEEL COMP XM-7 OVERALL, head_style: FLAT CHAMFER, head_height: 0.093 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN, thread_class: 2A A, head_diameter: 0.218 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN, thread_length: 0.125 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-351-0791, 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
NASM51575
NSN: 5305-01-351-0791
FSC: 5305 — Screws
CAGE: 80205 — NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE (USA)
SPECIFICATIONS
materialSTEEL COMP 304 OR STEEL COMP XM-7 OVERALL
head_styleFLAT CHAMFER
head_height0.093 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN
thread_class2A A
head_diameter0.218 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
thread_length0.125 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN
shoulder_shapeROUND FIRST SHOULDER
fastener_length0.313 INCHES MINIMUM AND 0.378 INCHES MAXIMUM IN
shoulder_length0.188 INCHES MINIMUM AND 0.191 INCHES MAXIMUM FIRST SHOULDER IN
thread_directionRIGHT-HAND
shoulder_diameter0.123 INCHES MINIMUM AND 0.124 INCHES MAXIMUM FIRST SHOULDER IN
surface_treatmentPASSIVATE OVERALL
NSN5305-01-351-0791
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: NASM51575 · 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: 0.093 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.313 INCHES MINIMUM AND 0.378 INCHES MAXIMUM IN
•
SHOULDER LENGTH: 0.188 INCHES MINIMUM AND 0.191 INCHES MAXIMUM FIRST SHOULDER IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
SHOULDER DIAMETER: 0.123 INCHES MINIMUM AND 0.124 INCHES MAXIMUM FIRST SHOULDER IN
•
THREAD LENGTH: 0.125 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN
•
SHOULDER SHAPE: ROUND FIRST SHOULDER
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A493 ASSN STD ALL MATERIAL RESPONSES OVERALL
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.093 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN
FASTENER LENGTH0.313 INCHES MINIMUM AND 0.378 INCHES MAXIMUM IN
SHOULDER LENGTH0.188 INCHES MINIMUM AND 0.191 INCHES MAXIMUM FIRST SHOULDER IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SHOULDER DIAMETER0.123 INCHES MINIMUM AND 0.124 INCHES MAXIMUM FIRST SHOULDER IN
THREAD LENGTH0.125 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN
SHOULDER SHAPEROUND FIRST SHOULDER
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A493 ASSN STD ALL MATERIAL RESPONSES OVERALL
NOMINAL THREAD DIAMETER0.112 INCHES IN
HEAD STYLEFLAT CHAMFER
SUBSTITUTES & CROSS-REFERENCES 2
NASM21472Reference document
Same NSN cross-reference
Reference document — Secondary reference
MS51575-2Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 NASM51575?
NASM51575 is a SCREW,SHOULDER.
What parts can replace NASM51575?
There are 2 known substitutes for NASM51575: NASM21472, MS51575-2. Substitute compatibility should be verified for your specific system.
What is the NSN for NASM51575?
NASM51575 is cataloged in the U.S. Government catalog under NSN 5305-01-351-0791. 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.