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DD421S48-454PC4 3-4 — PLUNGER

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

DD421S48-454PC4 3-4: PLUNGER.

The PLUNGER is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYAMIDE NYLON, body_length: 2.718 INCHES MAXIMUM IN, closure_type: LOCKING SCREW CAP, thread_class: 3A ALL THREADED STUD A, overall_width: 11.000 INCHES NOMINAL IN, terminal_type: CONNECTOR, RECEPTACLE. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-336-9319, 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
DD421S48-454PC4 3-4
NSN: 4730-00-336-9319
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialPLASTIC POLYAMIDE NYLON
body_length2.718 INCHES MAXIMUM IN
closure_typeLOCKING SCREW CAP
thread_class3A ALL THREADED STUD A
overall_width11.000 INCHES NOMINAL IN
terminal_typeCONNECTOR, RECEPTACLE
thread_length0.620 INCHES NOMINAL ALL THREADED STUD IN
overall_height5.500 INCHES NOMINAL IN
overall_length19.000 INCHES NOMINAL IN
proof_pressure120.00 POUNDS PER SQUARE INCH LBS
capacity_rating3.0 LITERS
furnished_itemsROLL UP POUCH
NSN4730-00-336-9319
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: DD421S48-454PC4 3-4 · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
SUBSTITUTES & CROSS-REFERENCES 10
LSD22S3802-260375PC4 3-4Reference document
Same NSN cross-reference
Reference document — Secondary reference
DD828S4810-317370PC7 3-4Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
CB1S3802-309457PC4 3-4Reference document
Same NSN cross-reference
Reference document — Secondary reference
CV22S48-497PC4 3-4Reference document
Same NSN cross-reference
Reference document — Secondary reference
CL55S38-48PC4 3-4Reference document
Same NSN cross-reference
Reference document — Secondary reference
DD692S4810-244948PC4 3-4Reference document
Same NSN cross-reference
Reference document — Secondary 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 DD421S48-454PC4 3-4?
DD421S48-454PC4 3-4 is a PLUNGER.
What parts can replace DD421S48-454PC4 3-4?
There are 10 known substitutes for DD421S48-454PC4 3-4: LSD22S3802-260375PC4 3-4, DD828S4810-317370PC7 3-4, CB1S3802-309457PC4 3-4 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for DD421S48-454PC4 3-4?
DD421S48-454PC4 3-4 is cataloged in the U.S. Government catalog under NSN 4730-00-336-9319. 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.