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57X891950-1 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

57X891950-1: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include width: 1.330 INCHES NOMINAL IN, length: 2.370 INCHES NOMINAL IN, corner_radius: 0.120 INCHES NOMINAL IN, body_thickness: 0.060 INCHES NOMINAL IN, inside_corner_radius: 0.380 INCHES NOMINAL IN, peripheral_shape_style: RECTANGLE, ONE CENTER HOLE. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-716-4102, 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
57X891950-1
NSN: 5340-00-716-4102
FSC: 5340 — Hardware, Commercial
CAGE: 26512 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
width1.330 INCHES NOMINAL IN
length2.370 INCHES NOMINAL IN
corner_radius0.120 INCHES NOMINAL IN
body_thickness0.060 INCHES NOMINAL IN
inside_corner_radius0.380 INCHES NOMINAL IN
peripheral_shape_styleRECTANGLE, ONE CENTER HOLE
cross-sectional_shape_styleARCHED
distance_from_first_hole_centerline_to_end_along_width1.180 INCHES NOMINAL IN
distance_from_first_hole_centerline_to_end_along_length1.180 INCHES NOMINAL IN
NSN5340-00-716-4102
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 57X891950-1 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
•
DISTANCE FROM FIRST HOLE CENTERLINE TO END ALONG WIDTH: 1.180 INCHES NOMINAL IN
•
CORNER RADIUS: 0.120 INCHES NOMINAL IN
•
LENGTH: 2.370 INCHES NOMINAL IN
•
INSIDE CORNER RADIUS: 0.380 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: ARCHED
•
DISTANCE FROM FIRST HOLE CENTERLINE TO END ALONG LENGTH: 1.180 INCHES NOMINAL IN
•
PERIPHERAL SHAPE STYLE: RECTANGLE, ONE CENTER HOLE
•
WIDTH: 1.330 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
DISTANCE FROM FIRST HOLE CENTERLINE TO END ALONG WIDTH1.180 INCHES NOMINAL IN
CORNER RADIUS0.120 INCHES NOMINAL IN
LENGTH2.370 INCHES NOMINAL IN
INSIDE CORNER RADIUS0.380 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLEARCHED
DISTANCE FROM FIRST HOLE CENTERLINE TO END ALONG LENGTH1.180 INCHES NOMINAL IN
PERIPHERAL SHAPE STYLERECTANGLE, ONE CENTER HOLE
WIDTH1.330 INCHES NOMINAL IN
BODY THICKNESS0.060 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 57X891950-1?
57X891950-1 is a COVER,ACCESS.
What is the NSN for 57X891950-1?
57X891950-1 is cataloged in the U.S. Government catalog under NSN 5340-00-716-4102. 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.