71-91090A — WINDOW,OBSERVATION

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

71-91090A: WINDOW,OBSERVATION.

The WINDOW,OBSERVATION is a the manufacturer industrial component. Key specifications include material: GLASS, edge_type: FLAT FINISH, overall_width: 3.340 INCHES MINIMUM AND 3.380 INCHES MAXIMUM IN, overall_length: 4.340 INCHES MINIMUM AND 4.380 INCHES MAXIMUM IN, style_designator: ROUNDED CORNERS, overall_thickness: 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 9340-01-273-3976, 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

71-91090A

NSN: 9340-01-273-3976
FSC: 9340 — Glass Fabricated Materials
CAGE: 07700 — TECHNICAL WIRE PRODUCTS, LLC DBA TWP (USA)

SPECIFICATIONS

material	GLASS
edge_type	FLAT FINISH
ply_quantity	2
overall_width	3.340 INCHES MINIMUM AND 3.380 INCHES MAXIMUM IN
overall_length	4.340 INCHES MINIMUM AND 4.380 INCHES MAXIMUM IN
style_designator	ROUNDED CORNERS
overall_thickness	0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN
wire_mesh_pattern	SQUARE
first_corner_radius	0.120 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN
third_corner_radius	0.120 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN
fourth_corner_radius	0.120 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN
second_corner_radius	0.120 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN
NSN	9340-01-273-3976

COMPONENT DIAGRAM

KEY FEATURES

•

FOURTH CORNER RADIUS: 0.120 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN

•

FIRST CORNER RADIUS: 0.120 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN

•

SECOND CORNER RADIUS: 0.120 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN

•

OVERALL THICKNESS: 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN

•

MATERIAL TRANSPARENCY: CLEAR

•

STYLE DESIGNATOR: ROUNDED CORNERS

•

MATERIAL DOCUMENT AND CLASSIFICATION: DD-G-451 FED SPEC SINGLE MATERIAL RESPONSE

TECHNICAL CHARACTERISTICS

FOURTH CORNER RADIUS	0.120 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN
FIRST CORNER RADIUS	0.120 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN
SECOND CORNER RADIUS	0.120 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN
OVERALL THICKNESS	0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN
MATERIAL TRANSPARENCY	CLEAR
STYLE DESIGNATOR	ROUNDED CORNERS
MATERIAL DOCUMENT AND CLASSIFICATION	DD-G-451 FED SPEC SINGLE MATERIAL RESPONSE
OVERALL LENGTH	4.340 INCHES MINIMUM AND 4.380 INCHES MAXIMUM IN
OVERALL WIDTH	3.340 INCHES MINIMUM AND 3.380 INCHES MAXIMUM IN
EDGE TYPE	FLAT FINISH

OTHER ITEMS IN FSC 9340 — Glass Fabricated Materials

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

9340-00-001-2702 9340-00-001-3590 9340-00-001-3591 9340-00-001-3592 9340-00-003-0380 9340-00-003-1497 9340-00-003-1553 9340-00-003-7325

SUBSTITUTES & CROSS-REFERENCES 1

101152-003Reference document

Same NSN cross-reference

Reference document — Secondary reference

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 71-91090A?

71-91090A is a WINDOW,OBSERVATION.

What parts can replace 71-91090A?

There is 1 known substitute for 71-91090A: 101152-003. Substitute compatibility should be verified for your specific system.

What is the NSN for 71-91090A?

71-91090A is cataloged in the U.S. Government catalog under NSN 9340-01-273-3976. This indicates validated use in U.S. government and defense supply chains.

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