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838127 — PLUG,EXPANSION

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

838127: PLUG,EXPANSION.

The PLUG,EXPANSION is a the manufacturer industrial component. Key specifications include height: 0.188 INCHES NOMINAL IN, radius: 0.031 INCHES NOMINAL IN, material: STEEL, outside_diameter: 1.976 INCHES MINIMUM AND 1.981 INCHES MAXIMUM IN, style_designator: TRAPPED CUP, smallest_diameter: 1.965 INCHES MINIMUM AND 1.970 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-276-9813, 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
838127
NSN: 5340-00-276-9813
FSC: 5340 — Hardware, Commercial
CAGE: 24617 — GENERAL MOTORS CORP (USA)
SPECIFICATIONS
height0.188 INCHES NOMINAL IN
radius0.031 INCHES NOMINAL IN
materialSTEEL
outside_diameter1.976 INCHES MINIMUM AND 1.981 INCHES MAXIMUM IN
style_designatorTRAPPED CUP
smallest_diameter1.965 INCHES MINIMUM AND 1.970 INCHES MAXIMUM IN
material_thickness0.045 INCHES MINIMUM AND 0.055 INCHES MAXIMUM IN
material_document_and_classificationSAE 1010 ASSN STD SINGLE MATERIAL RESPONSE
NSN5340-00-276-9813
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 838127 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
•
RADIUS: 0.031 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 1.976 INCHES MINIMUM AND 1.981 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: TRAPPED CUP
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE 1010 ASSN STD SINGLE MATERIAL RESPONSE
•
MATERIAL THICKNESS: 0.045 INCHES MINIMUM AND 0.055 INCHES MAXIMUM IN
•
HEIGHT: 0.188 INCHES NOMINAL IN
•
MATERIAL: STEEL
•
SMALLEST DIAMETER: 1.965 INCHES MINIMUM AND 1.970 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
RADIUS0.031 INCHES NOMINAL IN
OUTSIDE DIAMETER1.976 INCHES MINIMUM AND 1.981 INCHES MAXIMUM IN
STYLE DESIGNATORTRAPPED CUP
MATERIAL DOCUMENT AND CLASSIFICATIONSAE 1010 ASSN STD SINGLE MATERIAL RESPONSE
MATERIAL THICKNESS0.045 INCHES MINIMUM AND 0.055 INCHES MAXIMUM IN
HEIGHT0.188 INCHES NOMINAL IN
MATERIALSTEEL
SMALLEST DIAMETER1.965 INCHES MINIMUM AND 1.970 INCHES MAXIMUM 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 838127?
838127 is a PLUG,EXPANSION.
What is the NSN for 838127?
838127 is cataloged in the U.S. Government catalog under NSN 5340-00-276-9813. 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.