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114121-2.25SS-RBL-12 — THUMBSCREW

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

114121-2.25SS-RBL-12: THUMBSCREW.

The THUMBSCREW is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 OVERALL, head_style: STAR KNOB, head_height: 0.350 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN, thread_class: 2A A, thread_length: 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN, fastener_length: 2.210 INCHES MINIMUM AND 2.250 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-451-2800, 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
114121-2.25SS-RBL-12
NSN: 5305-01-451-2800
FSC: 5305 — Screws
CAGE: 51506 — ACCURATE SCREW MACHINE CORP DIV ACCURATE SCREW MACHINE CORPORATION (USA)
SPECIFICATIONS
materialSTEEL COMP 303 OVERALL
head_styleSTAR KNOB
head_height0.350 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN
thread_class2A A
thread_length0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
fastener_length2.210 INCHES MINIMUM AND 2.250 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
width_between_flats1.480 INCHES MINIMUM AND 1.520 INCHES MAXIMUM IN
nominal_thread_diameter0.250 INCHES IN
thread_quantity_per_inch20
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
NSN5305-01-451-2800
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 114121-2.25SS-RBL-12 · 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: 0.350 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN
•
FASTENER LENGTH: 2.210 INCHES MINIMUM AND 2.250 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
•
HEAD STYLE: STAR KNOB
•
THREAD DIRECTION: RIGHT-HAND
•
WIDTH BETWEEN FLATS: 1.480 INCHES MINIMUM AND 1.520 INCHES MAXIMUM IN
•
THREAD CLASS: 2A A
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.350 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN
FASTENER LENGTH2.210 INCHES MINIMUM AND 2.250 INCHES MAXIMUM IN
THREAD LENGTH0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.250 INCHES IN
HEAD STYLESTAR KNOB
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS1.480 INCHES MINIMUM AND 1.520 INCHES MAXIMUM IN
THREAD CLASS2A A
THREAD QUANTITY PER INCH20
MATERIALSTEEL COMP 303 OVERALL
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 1
12981723Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
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 114121-2.25SS-RBL-12?
114121-2.25SS-RBL-12 is a THUMBSCREW.
What parts can replace 114121-2.25SS-RBL-12?
There is 1 known substitute for 114121-2.25SS-RBL-12: 12981723. Substitute compatibility should be verified for your specific system.
What is the NSN for 114121-2.25SS-RBL-12?
114121-2.25SS-RBL-12 is cataloged in the U.S. Government catalog under NSN 5305-01-451-2800. 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.