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Technical Data Sheet
PartsTable / COMPONENT / 121951
121951 ✓ 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 KEY,MACHINE is a Hama industrial component. Key specifications include color: BLUE, physical_form: SOLID, basic_ingredient: ADDITIVES, quantity_within_each_unit_package: 13.0 OUNCES OZ. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5307-00-208-8142, 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
121951
NSN: 5307-00-208-8142
FSC: 5307
CAGE: 50870 — ARNOLD A SEMLER INC (USA)
SPECIFICATIONS
colorBLUE
physical_formSOLID
basic_ingredientADDITIVES
special_featuresRELATIVE DENSITY AT 15 DEGREES-0.914; FLASH POINT GREATER THAN 200 DEGREES CELSIUS; BOILING POINT RANGE GREATER THAN 316 DEGREES CELSIUS; VAPOR PRESSURE LESS THAN 0.013 KPA AT 20 DEGREES CELSIUS
quantity_within_each_unit_package13.0 OUNCES OZ
NSN5307-00-208-8142
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 121951 · 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
•
MATERIAL: COPPER ALLOY
•
NOMINAL THREAD SIZE: 0.250 INCHES LOCATION NOT OTHERWISE SPECIFIED IN
•
THREAD QUANTITY PER INCH: 28 LOCATION NOT OTHERWISE SPECIFIED
•
THREAD SERIES DESIGNATOR: UNF LOCATION NOT OTHERWISE SPECIFIED
•
THREAD CLASS: 2A LOCATION NOT OTHERWISE SPECIFIED A
•
THREAD DIRECTION: RIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED
•
SURFACE TREATMENT: NICKEL OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL LENGTH1.750 INCHES NOMINAL IN
MATERIALCOPPER ALLOY
NOMINAL THREAD SIZE0.250 INCHES LOCATION NOT OTHERWISE SPECIFIED IN
THREAD QUANTITY PER INCH28 LOCATION NOT OTHERWISE SPECIFIED
THREAD SERIES DESIGNATORUNF LOCATION NOT OTHERWISE SPECIFIED
THREAD CLASS2A LOCATION NOT OTHERWISE SPECIFIED A
THREAD DIRECTIONRIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED
SURFACE TREATMENTNICKEL OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
C13-5Interchangeable
interchangeable cross-reference
interchangeable
412369Interchangeable
interchangeable cross-reference
interchangeable
121951Interchangeable
interchangeable cross-reference
interchangeable
XOM121951Interchangeable
interchangeable cross-reference
interchangeable
MOBILGREASE XHP 220Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 121951?
121951 is a KEY,MACHINE manufactured by Hama.
What parts can replace 121951?
There are 5 known substitutes for 121951: C13-5, 412369, 121951 and 2 more. Substitute compatibility should be verified for your specific system.
Is 121951 still available?
121951 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