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502369 — BASE,MAST

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

502369: BASE,MAST.

The BASE,MAST is a the manufacturer industrial component. Key specifications include length: 0.985 INCHES MINIMUM AND 1.015 INCHES MAXIMUM IN, material: STEEL COMP 1117 OVERALL, insert_size: 0.5874 IN MIN 0.5914 IN MAX IN, style_designator: SERRATED, surface_treatment: CADMIUM OVERALL, material_document_and_classification: QQ-S-633-CANCELED FED SPEC SINGLE MATERIAL RESPONSE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5325-00-598-5573, 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
502369
NSN: 5325-00-598-5573
NIINs: 005985573, 017062264
FSC: 5325 — Fastening Devices
CAGE: 02978 — RENK AMERICA LLC DIV RENK AMERICA (USA)
SPECIFICATIONS
length0.985 INCHES MINIMUM AND 1.015 INCHES MAXIMUM IN
materialSTEEL COMP 1117 OVERALL
insert_size0.5874 IN MIN 0.5914 IN MAX IN
style_designatorSERRATED
surface_treatmentCADMIUM OVERALL
material_document_and_classificationQQ-S-633-CANCELED FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5325-00-598-5573
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 502369 · 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
•
LENGTH: 0.985 INCHES MINIMUM AND 1.015 INCHES MAXIMUM IN
•
INSERT SIZE: 0.5874 IN MIN 0.5914 IN MAX IN
•
STYLE DESIGNATOR: SERRATED
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-633-CANCELED FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
SURFACE TREATMENT: CADMIUM OVERALL
•
MATERIAL: STEEL COMP 1117 OVERALL
TECHNICAL CHARACTERISTICS
LENGTH0.985 INCHES MINIMUM AND 1.015 INCHES MAXIMUM IN
INSERT SIZE0.5874 IN MIN 0.5914 IN MAX IN
STYLE DESIGNATORSERRATED
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-633-CANCELED FED SPEC SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTCADMIUM OVERALL
MATERIALSTEEL COMP 1117 OVERALL
SUBSTITUTES & CROSS-REFERENCES 1
R2209SB16Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 502369?
502369 is a BASE,MAST.
What parts can replace 502369?
There is 1 known substitute for 502369: R2209SB16. Substitute compatibility should be verified for your specific system.
What is the NSN for 502369?
502369 is cataloged in the U.S. Government catalog under NSN 5325-00-598-5573. 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.