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CTS137AA-1 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

CTS137AA-1: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include width: 1.500 INCHES NOMINAL IN, length: 2.500 INCHES NOMINAL IN, material: ZINC ALLOY, body_radius: 0.750 INCHES NOMINAL IN, corner_radius: 0.313 INCHES NOMINAL IN, hole_diameter: 0.250 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-144-3777, 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
CTS137AA-1
NSN: 5340-01-144-3777
FSC: 5340 — Hardware, Commercial
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
width1.500 INCHES NOMINAL IN
length2.500 INCHES NOMINAL IN
materialZINC ALLOY
body_radius0.750 INCHES NOMINAL IN
corner_radius0.313 INCHES NOMINAL IN
hole_diameter0.250 INCHES NOMINAL IN
body_thickness0.094 INCHES NOMINAL IN
inside_diameter1.000 INCHES NOMINAL IN
flange_thickness0.094 INCHES NOMINAL IN
peripheral_shape_styleDIAMOND, ROUNDED CORNERS, TWO HOLES
first_recess_inside_height1.406 INCHES NOMINAL IN
cross-sectional_shape_styleCIRCULAR RECESS
NSN5340-01-144-3777
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: CTS137AA-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
•
CORNER RADIUS: 0.313 INCHES NOMINAL IN
•
LENGTH: 2.500 INCHES NOMINAL IN
•
DISTANCE BETWEEN HOLES ALONG LENGTH: 1.875 INCHES NOMINAL IN
•
FLANGE THICKNESS: 0.094 INCHES NOMINAL IN
•
FIRST RECESS INSIDE HEIGHT: 1.406 INCHES NOMINAL IN
•
MOUNTING OPENING SHAPE STYLE: UNTHREADED HOLE
•
CROSS-SECTIONAL SHAPE STYLE: CIRCULAR RECESS
•
BODY RADIUS: 0.750 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
CORNER RADIUS0.313 INCHES NOMINAL IN
LENGTH2.500 INCHES NOMINAL IN
DISTANCE BETWEEN HOLES ALONG LENGTH1.875 INCHES NOMINAL IN
FLANGE THICKNESS0.094 INCHES NOMINAL IN
FIRST RECESS INSIDE HEIGHT1.406 INCHES NOMINAL IN
MOUNTING OPENING SHAPE STYLEUNTHREADED HOLE
CROSS-SECTIONAL SHAPE STYLECIRCULAR RECESS
BODY RADIUS0.750 INCHES NOMINAL IN
INSIDE DIAMETER1.000 INCHES NOMINAL IN
PERIPHERAL SHAPE STYLEDIAMOND, ROUNDED CORNERS, TWO HOLES
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 1
CTS137AAReference document
Same NSN cross-reference
Reference document — Drawing number reference only
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 CTS137AA-1?
CTS137AA-1 is a COVER,ACCESS.
What parts can replace CTS137AA-1?
There is 1 known substitute for CTS137AA-1: CTS137AA. Substitute compatibility should be verified for your specific system.
What is the NSN for CTS137AA-1?
CTS137AA-1 is cataloged in the U.S. Government catalog under NSN 5340-01-144-3777. This indicates validated use in U.S. government and defense supply chains.
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