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PartsTable / COMPONENT / 121793
121793 ✓ Verified by PartsTable
Hama · 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,HEXAGON HEAD is a Hama industrial component. Key specifications include construction: SLOT WOUND, overall_length: 5.6880 INCHES NOMINAL IN, overall_diameter: 1.2500 INCHES NOMINAL IN, special_features: 121793 MARKED ON LAMINATIONS, features_provided: SHAFT. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-012-1793, 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
121793
NSN: 5305-00-012-1793
FSC: 5305
CAGE: 24617 — GENERAL MOTORS CORP (USA)
SPECIFICATIONS
constructionSLOT WOUND
overall_length5.6880 INCHES NOMINAL IN
overall_diameter1.2500 INCHES NOMINAL IN
special_features121793 MARKED ON LAMINATIONS
features_providedSHAFT
NSN5305-00-012-1793
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 121793 · Hama ⚠ 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 LENGTH: 0.312 INCHES MAXIMUM IN
•
THREAD DIRECTION: RIGHT-HAND
•
WIDTH BETWEEN FLATS: 0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
•
MATERIAL: STEEL OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE GR 2 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
HARDNESS RATING: 95.5 ROCKWELL B MINIMUM AND 100.0 ROCKWELL B MAXIMUM OVERALL
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-C-16232,TY 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
THREAD LENGTH0.312 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
MATERIALSTEEL OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONSAE GR 2 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
HARDNESS RATING95.5 ROCKWELL B MINIMUM AND 100.0 ROCKWELL B MAXIMUM OVERALL
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-16232,TY 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
HEAD STYLEHEXAGON
SURFACE TREATMENTPHOSPHATE OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
FF-S-85 TYII ST 10PInterchangeable
interchangeable cross-reference
interchangeable
121793Interchangeable
interchangeable cross-reference
interchangeable
1542377-022Interchangeable
interchangeable cross-reference
interchangeable
SC-D-931590-17Interchangeable
interchangeable cross-reference
interchangeable
682-539-9017Interchangeable
interchangeable cross-reference
interchangeable
721699-092Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 121793?
121793 is a SCREW,CAP,HEXAGON HEAD manufactured by Hama.
What parts can replace 121793?
There are 11 known substitutes for 121793: FF-S-85 TYII ST 10P, 121793, 1542377-022 and 8 more. Substitute compatibility should be verified for your specific system.
Is 121793 still available?
121793 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026