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21270-1005-1 — SETSCREW

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

21270-1005-1: SETSCREW.

The SETSCREW is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, fastener_length: 4.100 INCHES NOMINAL IN, thread_direction: RIGHT-HAND, end_item_identification: RESTRICTOR VALVE SEAWOLF CLASS SSN, nominal_thread_diameter: 0.880 INCHES IN, material_document_and_classification: AMS5643, 17-4 PH ASSN STD SINGLE MATERIAL RESPONSE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-503-2370, 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
21270-1005-1
NSN: 5305-01-503-2370
FSC: 5305 — Screws
CAGE: 78062 — SARGENT AEROSPACE & DEFENSE, LLC DBA SARGENT CONTROLS & AEROSPACE DIV SARGENT CONTROLS & AEROSPACE (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
fastener_length4.100 INCHES NOMINAL IN
thread_directionRIGHT-HAND
end_item_identificationRESTRICTOR VALVE SEAWOLF CLASS SSN
nominal_thread_diameter0.880 INCHES IN
material_document_and_classificationAMS5643, 17-4 PH ASSN STD SINGLE MATERIAL RESPONSE OVERALL
part_name_assigned_by_controlling_agencyADJUSTING SCREW
NSN5305-01-503-2370
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 21270-1005-1 · 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
•
FASTENER LENGTH: 4.100 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS5643, 17-4 PH ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.880 INCHES IN
•
THREAD DIRECTION: RIGHT-HAND
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
TECHNICAL CHARACTERISTICS
FASTENER LENGTH4.100 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS5643, 17-4 PH ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.880 INCHES IN
THREAD DIRECTIONRIGHT-HAND
PART NAME ASSIGNED BY CONTROLLING AGENCYADJUSTING SCREW
END ITEM IDENTIFICATIONRESTRICTOR VALVE SEAWOLF CLASS SSN
MATERIALSTEEL CORROSION RESISTING OVERALL
SUBSTITUTES & CROSS-REFERENCES 1
21270-6Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 21270-1005-1?
21270-1005-1 is a SETSCREW.
What parts can replace 21270-1005-1?
There is 1 known substitute for 21270-1005-1: 21270-6. Substitute compatibility should be verified for your specific system.
What is the NSN for 21270-1005-1?
21270-1005-1 is cataloged in the U.S. Government catalog under NSN 5305-01-503-2370. 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.