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21 821-025 — PLATE,ORIFICE,FLUID

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

21 821-025: PLATE,ORIFICE,FLUID.

The PLATE,ORIFICE,FLUID is a the manufacturer industrial component. Key specifications include shape: ROUND, inside_diameter: 0.001 INCHES NOMINAL IN, special_features: CONICAL DISC, MAX PRESSURE DROP 207 BAR (3000PSI), end_item_identification: MK18 INTENSIFIER. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-459-7682, 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
21 821-025
NSN: 4730-01-459-7682
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 0ADW4 — GS GLOBAL RESOURCES, INC (USA)
SPECIFICATIONS
shapeROUND
inside_diameter0.001 INCHES NOMINAL IN
special_featuresCONICAL DISC, MAX PRESSURE DROP 207 BAR (3000PSI)
end_item_identificationMK18 INTENSIFIER
NSN4730-01-459-7682
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 21 821-025 · 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
•
SHAPE: ROUND
•
INSIDE DIAMETER: 0.001 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SHAPEROUND
INSIDE DIAMETER0.001 INCHES NOMINAL IN
SPECIAL FEATURESCONICAL DISC, MAX PRESSURE DROP 207 BAR (3000PSI)
END ITEM IDENTIFICATIONMK18 INTENSIFIER
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
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 21 821-025?
21 821-025 is a PLATE,ORIFICE,FLUID.
What is the NSN for 21 821-025?
21 821-025 is cataloged in the U.S. Government catalog under NSN 4730-01-459-7682. 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.