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LU. FORM. 4631 — BINDER,LOOSE-LEAF

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

LU. FORM. 4631: BINDER,LOOSE-LEAF.

The BINDER,LOOSE-LEAF is a the manufacturer industrial component. Key specifications include diameter: 0.375 INCHES NOMINAL IN, material: LEATHER ARTIFICIAL COVER, post_type: FIXED, TELESCOPIC, slot_type: TITLE, cover_color: BLUE, design_type: SEPARABLE. This part is cataloged in the U.S.

Government catalog under NSN 7510-00-281-5963, 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
LU. FORM. 4631
NSN: 7510-00-281-5963
FSC: 7510 — Office Supplies
CAGE: H1859 — MINISTERIE VAN DEFENSIE CLSK (NLD)
SPECIFICATIONS
diameter0.375 INCHES NOMINAL IN
materialLEATHER ARTIFICIAL COVER
post_typeFIXED, TELESCOPIC
slot_typeTITLE
cover_colorBLUE
design_typeSEPARABLE
capacity_rating1.500 INCHES NOMINAL IN
cover_back_typeCLOSED
opening_locationSIDE COVER
special_markingsUSAF PUBLICATIONS
cover_design_typeRIGID
fastener_quantity3
NSN7510-00-281-5963
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available BINDER,LOOSE-LEAF TITLE COMPONENT PN LU. FORM. 4631 MFR BINDER,LOOSE-LEAF
KEY FEATURES
•
DESIGN TYPE: SEPARABLE
•
ACCOMMODATED SHEET WIDTH: 8.500 INCHES NOMINAL IN
•
COVER COLOR: BLUE
•
DIAMETER: 0.375 INCHES NOMINAL IN
•
ACCOMMODATED ITEM SECURING DEVICE TYPE: POST
•
POST TYPE: FIXED, TELESCOPIC
•
LOCKING DEVICE TYPE: CENTER RING LIFT
•
SLOT TYPE: TITLE
TECHNICAL CHARACTERISTICS
DESIGN TYPESEPARABLE
ACCOMMODATED SHEET WIDTH8.500 INCHES NOMINAL IN
COVER COLORBLUE
DIAMETER0.375 INCHES NOMINAL IN
ACCOMMODATED ITEM SECURING DEVICE TYPEPOST
POST TYPEFIXED, TELESCOPIC
LOCKING DEVICE TYPECENTER RING LIFT
SLOT TYPETITLE
ACCOMMODATED SHEET LENGTH11.000 INCHES NOMINAL IN
DEPARTURE FROM CITED DESIGNATORAFFA,MARK,BSYM
SUBSTITUTES & CROSS-REFERENCES 2
UU-B-00320Reference document
Same NSN cross-reference
Reference document — Identification reference
UU-B-00320 TY2CLReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is LU. FORM. 4631?
LU. FORM. 4631 is a BINDER,LOOSE-LEAF.
What parts can replace LU. FORM. 4631?
There are 2 known substitutes for LU. FORM. 4631: UU-B-00320, UU-B-00320 TY2CL. Substitute compatibility should be verified for your specific system.
What is the NSN for LU. FORM. 4631?
LU. FORM. 4631 is cataloged in the U.S. Government catalog under NSN 7510-00-281-5963. 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.