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PWA51854-8 — CAP,PROTECTIVE,DUST AND MOISTURE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

PWA51854-8: CAP,PROTECTIVE,DUST AND MOISTURE.

CAP,PROTECTIVE,DUST AND MOISTURE. Key specifications include material: STEEL COMP 1018 OR STEEL COMP 1020, design_type: THREADED, thread_class: 2B, overall_diameter: 0.625 INCHES NOMINAL IN, inside_diameter_length: 0.375 INCHES NOMINAL IN, material_document_and_classification: AISI 1018 ASSN STD SINGLE MATERIAL RESPONSE OR AISI 1020 ASSN STD SINGLE MATERIAL RESPONSE. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-035-9949, 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
PWA51854-8
NSN: 5340-01-035-9949
FSC: 5340 — Hardware, Commercial
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
materialSTEEL COMP 1018 OR STEEL COMP 1020
design_typeTHREADED
thread_class2B
overall_diameter0.625 INCHES NOMINAL IN
inside_diameter_length0.375 INCHES NOMINAL IN
material_document_and_classificationAISI 1018 ASSN STD SINGLE MATERIAL RESPONSE OR AISI 1020 ASSN STD SINGLE MATERIAL RESPONSE
thread_size_and_series/type_designator3/8-16 UNIFIED NATIONAL COARSE (UNC)
NSN5340-01-035-9949
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: PWA51854-8 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
•
DESIGN TYPE: THREADED
•
OVERALL DIAMETER: 0.625 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AISI 1018 ASSN STD SINGLE MATERIAL RESPONSE OR AISI 1020 ASSN STD SINGLE MATERIAL RESPONSE
•
THREAD CLASS: 2B
•
MATERIAL: STEEL COMP 1018 OR STEEL COMP 1020
•
THREAD SIZE AND SERIES/TYPE DESIGNATOR: 3/8-16 UNIFIED NATIONAL COARSE (UNC)
•
INSIDE DIAMETER LENGTH: 0.375 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
DESIGN TYPETHREADED
OVERALL DIAMETER0.625 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONAISI 1018 ASSN STD SINGLE MATERIAL RESPONSE OR AISI 1020 ASSN STD SINGLE MATERIAL RESPONSE
THREAD CLASS2B
MATERIALSTEEL COMP 1018 OR STEEL COMP 1020
THREAD SIZE AND SERIES/TYPE DESIGNATOR3/8-16 UNIFIED NATIONAL COARSE (UNC)
INSIDE DIAMETER LENGTH0.375 INCHES NOMINAL IN
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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is PWA51854-8?
PWA51854-8 is a CAP,PROTECTIVE,DUST AND MOISTURE.
What is the NSN for PWA51854-8?
PWA51854-8 is cataloged in the U.S. Government catalog under NSN 5340-01-035-9949. 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.