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CST3756 — CASE,SPECTACLE

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

CST3756: CASE,SPECTACLE.

The CASE,SPECTACLE is a the manufacturer industrial component. Key specifications include depth: 1.250 INCHES NOMINAL IN, width: 2.750 INCHES NOMINAL IN, length: 6.500 INCHES NOMINAL IN, material: PLASTIC POLYVINYL CHLORIDE (PVC), design_type: ENVELOPE, part_name_assigned_by_controlling_agency: CASE SPECTACLE PVC 6.5X2.75X1.25" UNIVERSAL FIT CLOTH LINED 50S. This part is cataloged in the U.S.

Government catalog under NSN 6540-01-475-6808, 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
CST3756
NSN: 6540-01-475-6808
FSC: 6540 — Ophthalmic Instruments, Equipment, and Supplies
CAGE: 0STF6 — WAIN MFG CORP (USA)
SPECIFICATIONS
depth1.250 INCHES NOMINAL IN
width2.750 INCHES NOMINAL IN
length6.500 INCHES NOMINAL IN
materialPLASTIC POLYVINYL CHLORIDE (PVC)
design_typeENVELOPE
part_name_assigned_by_controlling_agencyCASE SPECTACLE PVC 6.5X2.75X1.25" UNIVERSAL FIT CLOTH LINED 50S
NSN6540-01-475-6808
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CASE,SPECTACLE TITLE COMPONENT PN CST3756 MFR CASE,SPECTACLE
KEY FEATURES
•
LENGTH: 6.500 INCHES NOMINAL IN
•
DESIGN TYPE: ENVELOPE
•
DEPTH: 1.250 INCHES NOMINAL IN
•
WIDTH: 2.750 INCHES NOMINAL IN
•
MATERIAL: PLASTIC POLYVINYL CHLORIDE (PVC)
TECHNICAL CHARACTERISTICS
LENGTH6.500 INCHES NOMINAL IN
DESIGN TYPEENVELOPE
SPECIAL FEATURESUNIVERSAL FIT; 0.035 GAUGE PVC LAMINATED TO 5/32 IN. FOAM AND BLACK BRUSHED TRICOT LINING; SEMI-RIGID WITH VELCRO CLOSURE AND FELT LINED PLASTIC STYRENE INSERT; SOFT LINING TO HELP PREVENT SCRATCHING OF PLASTIC LENSES; COMES WITH PREPRINTED IDENTIFICATION CARD IN
DEPTH1.250 INCHES NOMINAL IN
WIDTH2.750 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCYCASE SPECTACLE PVC 6.5X2.75X1.25" UNIVERSAL FIT CLOTH LINED 50S
MATERIALPLASTIC POLYVINYL CHLORIDE (PVC)
SUBSTITUTES & CROSS-REFERENCES 3
00-0356Reference document
Same NSN cross-reference
Reference document — Secondary reference
754080 CASTReference document
Same NSN cross-reference
Reference document — Design control — primary reference
COMMERCIAL SPECIFICATIONSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is CST3756?
CST3756 is a CASE,SPECTACLE.
What parts can replace CST3756?
There are 3 known substitutes for CST3756: 00-0356, 754080 CAST, COMMERCIAL SPECIFICATION. Substitute compatibility should be verified for your specific system.
What is the NSN for CST3756?
CST3756 is cataloged in the U.S. Government catalog under NSN 6540-01-475-6808. 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.