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TF12S — CAP,PROTECTIVE,DUST AND MOISTURE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

TF12S: CAP,PROTECTIVE,DUST AND MOISTURE.

CAP,PROTECTIVE,DUST AND MOISTURE. Key specifications include material: STEEL, design_type: FRICTION, overall_diameter: 1.250 INCHES NOMINAL IN, surface_treatment: ZINC, inside_diameter_length: 0.750 INCHES NOMINAL IN, round_cap_outside_surface_condition: KNURLED. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-016-6920, 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
TF12S
NSN: 5340-00-016-6920
FSC: 5340 — Hardware, Commercial
CAGE: 1C1F4 — FASTER INC (USA)
SPECIFICATIONS
materialSTEEL
design_typeFRICTION
overall_diameter1.250 INCHES NOMINAL IN
surface_treatmentZINC
inside_diameter_length0.750 INCHES NOMINAL IN
round_cap_outside_surface_conditionKNURLED
tube_outside_diameter_for_which_designed0.938 INCHES NOMINAL IN
NSN5340-00-016-6920
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: TF12S 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
KEY FEATURES
•
DESIGN TYPE: FRICTION
•
OVERALL DIAMETER: 1.250 INCHES NOMINAL IN
•
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED: 0.938 INCHES NOMINAL IN
•
SURFACE TREATMENT: ZINC
•
MATERIAL: STEEL
•
INSIDE DIAMETER LENGTH: 0.750 INCHES NOMINAL IN
•
ROUND CAP OUTSIDE SURFACE CONDITION: KNURLED
TECHNICAL CHARACTERISTICS
DESIGN TYPEFRICTION
OVERALL DIAMETER1.250 INCHES NOMINAL IN
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED0.938 INCHES NOMINAL IN
SURFACE TREATMENTZINC
MATERIALSTEEL
INSIDE DIAMETER LENGTH0.750 INCHES NOMINAL IN
ROUND CAP OUTSIDE SURFACE CONDITIONKNURLED
SUBSTITUTES & CROSS-REFERENCES 1
5009-4Reference document
Same NSN cross-reference
Reference document — Design control — primary 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 TF12S?
TF12S is a CAP,PROTECTIVE,DUST AND MOISTURE.
What parts can replace TF12S?
There is 1 known substitute for TF12S: 5009-4. Substitute compatibility should be verified for your specific system.
What is the NSN for TF12S?
TF12S is cataloged in the U.S. Government catalog under NSN 5340-00-016-6920. 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.