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Technical Data Sheet
PartsTable / COMPONENT / MS21262-54
MS21262-54 ✓ Verified by PartsTable
— · BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The SCREW,CAP,SOCKET HEAD is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: FLAT CHAMFER, head_height: 0.159 INCHES MINIMUM AND 0.164 INCHES MAXIMUM IN, thread_class: 3A A, head_diameter: 0.262 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN, thread_length: 0.923 INCHES MINIMUM AND 1.031 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-245-8472, 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
MS21262-54
NSN: 5305-00-245-8472
FSC: 5305
CAGE: 80205 — NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleFLAT CHAMFER
head_height0.159 INCHES MINIMUM AND 0.164 INCHES MAXIMUM IN
thread_class3A A
head_diameter0.262 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
thread_length0.923 INCHES MINIMUM AND 1.031 INCHES MAXIMUM IN
surface_finish63.0 MICROINCHES THREADS
fastener_length0.985 INCHES MINIMUM AND 1.031 INCHES MAXIMUM IN
hardness_rating36.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
surface_treatmentCADMIUM AND CHROMATE OVERALL
width_across_flats0.141 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
NSN5305-00-245-8472
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: MS21262-54 · 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
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
•
MATERIAL: STEEL OVERALL
•
NONDEFINITIVE SPEC/STD DATA: 6 TYPE
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TYPE 2,CLASS 3 FED SPEC ALL TREATMENT RESPONSES OVERALL
•
THREAD QUANTITY PER INCH: 32
•
FASTENER LENGTH: 0.985 INCHES MINIMUM AND 1.031 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.923 INCHES MINIMUM AND 1.031 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL OVERALL
NONDEFINITIVE SPEC/STD DATA6 TYPE
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TYPE 2,CLASS 3 FED SPEC ALL TREATMENT RESPONSES OVERALL
THREAD QUANTITY PER INCH32
FASTENER LENGTH0.985 INCHES MINIMUM AND 1.031 INCHES MAXIMUM IN
THREAD LENGTH0.923 INCHES MINIMUM AND 1.031 INCHES MAXIMUM IN
HEAD HEIGHT0.159 INCHES MINIMUM AND 0.164 INCHES MAXIMUM IN
MINIMUM YIELD STRENGTH130000 POUNDS PER SQUARE INCH LBS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
27124-2Interchangeable
interchangeable cross-reference
interchangeable
24-0693-00Interchangeable
interchangeable cross-reference
interchangeable
310-14533-01Interchangeable
interchangeable cross-reference
interchangeable
23820.1000Interchangeable
interchangeable cross-reference
interchangeable
28320.1Interchangeable
interchangeable cross-reference
interchangeable
23820Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS21262-54?
MS21262-54 is a SCREW,CAP,SOCKET HEAD.
What parts can replace MS21262-54?
There are 9 known substitutes for MS21262-54: 27124-2, 24-0693-00, 310-14533-01 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS21262-54?
MS21262-54 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-245-8472. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026