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FS0304-C-12 — CAP,PROTECTIVE,DUST AND MOISTURE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

FS0304-C-12: CAP,PROTECTIVE,DUST AND MOISTURE.

CAP,PROTECTIVE,DUST AND MOISTURE. Key specifications include material: STEEL, design_type: THREADED, inside_diameter_length: 0.530 INCHES NOMINAL IN, part_name_assigned_by_controlling_agency: 12 FS CAP ASSEMBLY INSERT AND NUT, tube_outside_diameter_for_which_designed: 1.097 INCHES NOMINAL IN, opening_inside_diameter_for_which_designed: 0.750 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-620-7142, 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
FS0304-C-12
NSN: 5340-01-620-7142
FSC: 5340 — Hardware, Commercial
CAGE: 5E240 — BRENNAN INDUSTRIES (USA)
SPECIFICATIONS
materialSTEEL
design_typeTHREADED
inside_diameter_length0.530 INCHES NOMINAL IN
part_name_assigned_by_controlling_agency12 FS CAP ASSEMBLY INSERT AND NUT
tube_outside_diameter_for_which_designed1.097 INCHES NOMINAL IN
opening_inside_diameter_for_which_designed0.750 INCHES NOMINAL IN
NSN5340-01-620-7142
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: FS0304-C-12 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: THREADED
•
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED: 1.097 INCHES NOMINAL IN
•
OPENING INSIDE DIAMETER FOR WHICH DESIGNED: 0.750 INCHES NOMINAL IN
•
MATERIAL: STEEL
•
INSIDE DIAMETER LENGTH: 0.530 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
DESIGN TYPETHREADED
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED1.097 INCHES NOMINAL IN
OPENING INSIDE DIAMETER FOR WHICH DESIGNED0.750 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCY12 FS CAP ASSEMBLY INSERT AND NUT
MATERIALSTEEL
INSIDE DIAMETER LENGTH0.530 INCHES NOMINAL IN
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 FS0304-C-12?
FS0304-C-12 is a CAP,PROTECTIVE,DUST AND MOISTURE.
What is the NSN for FS0304-C-12?
FS0304-C-12 is cataloged in the U.S. Government catalog under NSN 5340-01-620-7142. 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.