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P687 — CAPACITOR,VARIABLE,AIR DIELECTRI

✓ Government record, cited
— · MRO · MRO_GENERAL
PRODUCT OVERVIEW

P687: CAPACITOR,VARIABLE,AIR DIELECTRI.

CAPACITOR,VARIABLE,AIR DIELECTRI. Key specifications include material: PLASTIC, overall_height: 0.406 INCHES NOMINAL IN, overall_diameter: 0.781 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-203-6406, 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
MRO→ MRO_GENERAL→ P687
NSN: 4730-00-203-6406
NIINs: 002036406, 010847153
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 99381 — TOBEYCO MFG, CO, INC. DIV FEDERAL BRASS MFG. (USA)
SPECIFICATIONS
materialPLASTIC
overall_height0.406 INCHES NOMINAL IN
overall_diameter0.781 INCHES NOMINAL IN
NSN4730-00-203-6406
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: P687 · 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
TYPICAL APPLICATIONS
  • RAID cache protection during power loss events
  • Write-back cache enablement for storage controllers
  • Enterprise server data integrity assurance
  • Hot-swap battery/capacitor replacement in production
SUBSTITUTES & CROSS-REFERENCES 9
1644AReference document
Same NSN cross-reference
Reference document — Secondary reference
405004-001Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
219-4Reference document
Same NSN cross-reference
Reference document — Secondary reference
6030099Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
JD7759Reference document
Same NSN cross-reference
Reference document — Secondary reference
PD38557Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is P687?
P687 is a CAPACITOR,VARIABLE,AIR DIELECTRI. It is classified as a MRO (MRO_GENERAL).
What parts can replace P687?
There are 9 known substitutes for P687: 1644A, 405004-001, 219-4 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for P687?
P687 is cataloged in the U.S. Government catalog under NSN 4730-00-203-6406. 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.