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4F51006-123A — CAP,RETENTION,PRESSURE PLUG

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

4F51006-123A: CAP,RETENTION,PRESSURE PLUG.

The CAP,RETENTION,PRESSURE PLUG is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC, overall_length: 0.750 INCHES NOMINAL IN, overall_diameter: 0.250 INCHES NOMINAL IN, end_item_identification: SEAL-PRESSURE,FORWARD RAMP, part_name_assigned_by_controlling_agency: PLUG. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-598-1939, 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
4F51006-123A
NSN: 4730-01-598-1939
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 98897 — LOCKHEED MARTIN CORP (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC
overall_length0.750 INCHES NOMINAL IN
overall_diameter0.250 INCHES NOMINAL IN
end_item_identificationSEAL-PRESSURE,FORWARD RAMP
part_name_assigned_by_controlling_agencyPLUG
NSN4730-01-598-1939
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 4F51006-123A · 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
KEY FEATURES
•
OVERALL DIAMETER: 0.250 INCHES NOMINAL IN
•
MATERIAL: RUBBER SYNTHETIC
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER0.250 INCHES NOMINAL IN
OVERALL LENGTH0.750 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCYPLUG
END ITEM IDENTIFICATIONSEAL-PRESSURE,FORWARD RAMP
MATERIALRUBBER SYNTHETIC
OTHER ITEMS IN FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895 4730-00-000-4289 4730-00-000-4445 4730-00-000-8373 4730-00-000-8897 4730-00-001-0007 4730-00-001-0008
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4F51006-123A?
4F51006-123A is a CAP,RETENTION,PRESSURE PLUG.
What is the NSN for 4F51006-123A?
4F51006-123A is cataloged in the U.S. Government catalog under NSN 4730-01-598-1939. 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.