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7543201 — CAP-PLUG,PROTECTIVE,DUST AND MOI

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

7543201: CAP-PLUG,PROTECTIVE,DUST AND MOI.

CAP-PLUG,PROTECTIVE,DUST AND MOI. Key specifications include material: ALUMINUM ALLOY 2024, length_under_shoulder: 0.785 INCHES MINIMUM AND 0.815 INCHES MAXIMUM IN, open_end_inside_diameter: 2.540 INCHES NOMINAL IN, closed_end_overall_diameter: 2.635 INCHES MINIMUM AND 2.665 INCHES MAXIMUM IN, material_document_and_classification: QQ-A-225/6 FED SPEC SINGLE MATERIAL RESPONSE. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-338-9388, 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
7543201
NSN: 5340-01-338-9388
FSC: 5340 — Hardware, Commercial
CAGE: 05228 — PTI TECHNOLOGIES INC. (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 2024
length_under_shoulder0.785 INCHES MINIMUM AND 0.815 INCHES MAXIMUM IN
open_end_inside_diameter2.540 INCHES NOMINAL IN
closed_end_overall_diameter2.635 INCHES MINIMUM AND 2.665 INCHES MAXIMUM IN
material_document_and_classificationQQ-A-225/6 FED SPEC SINGLE MATERIAL RESPONSE
NSN5340-01-338-9388
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 7543201 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
•
CLOSED END OVERALL DIAMETER: 2.635 INCHES MINIMUM AND 2.665 INCHES MAXIMUM IN
•
LENGTH UNDER SHOULDER: 0.785 INCHES MINIMUM AND 0.815 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-225/6 FED SPEC SINGLE MATERIAL RESPONSE
•
OPEN END INSIDE DIAMETER: 2.540 INCHES NOMINAL IN
•
MATERIAL: ALUMINUM ALLOY 2024
TECHNICAL CHARACTERISTICS
CLOSED END OVERALL DIAMETER2.635 INCHES MINIMUM AND 2.665 INCHES MAXIMUM IN
LENGTH UNDER SHOULDER0.785 INCHES MINIMUM AND 0.815 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/6 FED SPEC SINGLE MATERIAL RESPONSE
OPEN END INSIDE DIAMETER2.540 INCHES NOMINAL IN
MATERIALALUMINUM ALLOY 2024
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 7543201?
7543201 is a CAP-PLUG,PROTECTIVE,DUST AND MOI.
What is the NSN for 7543201?
7543201 is cataloged in the U.S. Government catalog under NSN 5340-01-338-9388. 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.