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04MS005-21 — SCREW,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

04MS005-21: SCREW,MACHINE.

The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: WATERTIGHT, head_height: 0.087 INCHES MINIMUM AND 0.097 INCHES MAXIMUM IN, thread_class: 2A A, head_diameter: 0.256 INCHES MINIMUM AND 0.294 INCHES MAXIMUM IN, thread_length: 0.406 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN, screw_material: STEEL COMP 303 OR STEEL COMP 304 OR STEEL COMP 305. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-006-8952, 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
04MS005-21
NSN: 5305-01-006-8952
FSC: 5305 — Screws
CAGE: 24587 — RAYTHEON CO ESD LONG ISLAND DIV (USA)
SPECIFICATIONS
head_styleWATERTIGHT
head_height0.087 INCHES MINIMUM AND 0.097 INCHES MAXIMUM IN
thread_class2A A
head_diameter0.256 INCHES MINIMUM AND 0.294 INCHES MAXIMUM IN
thread_length0.406 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
screw_materialSTEEL COMP 303 OR STEEL COMP 304 OR STEEL COMP 305
fastener_length0.468 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
features_providedO RING
internal_drive_styleCROSS RECESS TYPE 1
nominal_thread_diameter0.138 INCHES IN
screw_surface_treatmentPASSIVATE
NSN5305-01-006-8952
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 04MS005-21 · 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: 0.087 INCHES MINIMUM AND 0.097 INCHES MAXIMUM IN
•
SCREW SURFACE TREATMENT: PASSIVATE
•
FASTENER LENGTH: 0.468 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.406 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.138 INCHES IN
•
FEATURES PROVIDED: O RING
•
HEAD STYLE: WATERTIGHT
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.087 INCHES MINIMUM AND 0.097 INCHES MAXIMUM IN
SCREW SURFACE TREATMENTPASSIVATE
FASTENER LENGTH0.468 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
THREAD LENGTH0.406 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.138 INCHES IN
FEATURES PROVIDEDO RING
HEAD STYLEWATERTIGHT
THREAD DIRECTIONRIGHT-HAND
SCREW MATERIALSTEEL COMP 303 OR STEEL COMP 304 OR STEEL COMP 305
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
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 4
S6-32NC-2A-21Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
MS3213-15Reference document
Same NSN cross-reference
Reference document — Secondary reference
003-008570-015Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
HT06R32F08Reference 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 04MS005-21?
04MS005-21 is a SCREW,MACHINE.
What parts can replace 04MS005-21?
There are 4 known substitutes for 04MS005-21: S6-32NC-2A-21, MS3213-15, 003-008570-015 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 04MS005-21?
04MS005-21 is cataloged in the U.S. Government catalog under NSN 5305-01-006-8952. 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.