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021-255 — SCREW,BONE,MAXILLOFACIAL SURGERY

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

021-255: SCREW,BONE,MAXILLOFACIAL SURGERY.

SCREW,BONE,MAXILLOFACIAL SURGERY. Key specifications include material: TITANIUM OVERALL, overall_length: 16.0 MILLIMETERS NOMINAL MM, special_features: 2.0MM; TITANIUM; EMERGENCY; WITH STARDRIVE TM RECESS; 2MM INCREMENTS MM, weighted_feature: NOT PROVIDED, design_designation: SYNTHES, end_item_identification: CRANIOFACIAL MODULAR FIXATION SYSTEM. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-401-4335, 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
021-255
NSN: 5330-00-401-4335
NIINs: 004014335, 010483340, 015001185
FSC: 5330 — Packing and Gasket Materials
CAGE: 14541 — COOPER MACHINERY SERVICES LLC (USA)
SPECIFICATIONS
materialTITANIUM OVERALL
overall_length16.0 MILLIMETERS NOMINAL MM
special_features2.0MM; TITANIUM; EMERGENCY; WITH STARDRIVE TM RECESS; 2MM INCREMENTS MM
weighted_featureNOT PROVIDED
design_designationSYNTHES
end_item_identificationCRANIOFACIAL MODULAR FIXATION SYSTEM
part_name_assigned_by_controlling_agencySCREW BONE MAXILLOFA SURG CORTEX EMERG 16MM X 2MM TITAN STARDRIV MM
NSN5330-00-401-4335
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 021-255 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
TECHNICAL CHARACTERISTICS
END ITEM IDENTIFICATIONUSED ON ENGINE GENERATOR
SUBSTITUTES & CROSS-REFERENCES 1
H14685Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 021-255?
021-255 is a SCREW,BONE,MAXILLOFACIAL SURGERY.
What parts can replace 021-255?
There is 1 known substitute for 021-255: H14685. Substitute compatibility should be verified for your specific system.
What is the NSN for 021-255?
021-255 is cataloged in the U.S. Government catalog under NSN 5330-00-401-4335. 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.