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RB4477 — PLUG,PROTECTIVE,DUST AND MOISTUR

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

RB4477: PLUG,PROTECTIVE,DUST AND MOISTUR.

PLUG,PROTECTIVE,DUST AND MOISTUR. Key specifications include material: PLASTIC, design_type: FRICTION, special_features: 1.125 INCHES LONG FROM BOTTOM OF HEAD IN, end_item_identification: 4930-017060781, part_name_assigned_by_controlling_agency: PLASTIC RIVET, tube_outside_diameter_for_which_designed: 0.125 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-719-4620, 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
RB4477
NSN: 5340-01-719-4620
FSC: 5340 — Hardware, Commercial
CAGE: 00299 — WS DARLEY & CO DIV OHLER PUMP (USA)
SPECIFICATIONS
materialPLASTIC
design_typeFRICTION
special_features1.125 INCHES LONG FROM BOTTOM OF HEAD IN
end_item_identification4930-017060781
part_name_assigned_by_controlling_agencyPLASTIC RIVET
tube_outside_diameter_for_which_designed0.125 INCHES NOMINAL IN
opening_inside_diameter_for_which_designed0.250 INCHES NOMINAL IN
NSN5340-01-719-4620
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: RB4477 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
•
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED: 0.125 INCHES NOMINAL IN
•
OPENING INSIDE DIAMETER FOR WHICH DESIGNED: 0.250 INCHES NOMINAL IN
•
MATERIAL: PLASTIC
TECHNICAL CHARACTERISTICS
DESIGN TYPEFRICTION
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED0.125 INCHES NOMINAL IN
OPENING INSIDE DIAMETER FOR WHICH DESIGNED0.250 INCHES NOMINAL IN
SPECIAL FEATURES1.125 INCHES LONG FROM BOTTOM OF HEAD IN
PART NAME ASSIGNED BY CONTROLLING AGENCYPLASTIC RIVET
END ITEM IDENTIFICATION4930-017060781
MATERIALPLASTIC
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 RB4477?
RB4477 is a PLUG,PROTECTIVE,DUST AND MOISTUR.
What is the NSN for RB4477?
RB4477 is cataloged in the U.S. Government catalog under NSN 5340-01-719-4620. 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.