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XL21 — Technical Data Sheet

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— · COMPONENT
WHAT YOU NEED TO KNOW
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PRODUCT OVERVIEW

The HOUSING,BEARING UNIT is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, tip_type: PHILLIPS CROSS, bore_diameter: 1.0000 INCHES NOMINAL IN, housing_length: 0.7500 INCHES NOMINAL IN, overall_length: 1.125 INCHES NOMINAL IN, drive_shank_type: HEXAGON. This part is cataloged in the Federal Logistics Information System under NSN 5120-00-439-8277, 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
XL21
NSN: 5120-00-439-8277
FSC: 5120
CAGE: 96508 — APEX TOOL GROUP (USA)
SPECIFICATIONS
materialSTEEL OVERALL
tip_typePHILLIPS CROSS
bore_diameter1.0000 INCHES NOMINAL IN
housing_length0.7500 INCHES NOMINAL IN
overall_length1.125 INCHES NOMINAL IN
drive_shank_typeHEXAGON
flange_thickness0.4375 INCHES NOMINAL IN
housing_diameter2.5000 INCHES NOMINAL IN
style_designatorFLANGE BLOCK
features_providedMANUAL TOOL
mounting_hole_typeSQUARE
mounting_hole_width0.3437 INCHES NOMINAL IN
NSN5120-00-439-8277
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available HOUSING,BEARING UNIT TITLE COMPONENT PN XL21 MFR HOUSING,BEARING UNIT
KEY FEATURES
•
SHANK WIDTH ACROSS WRENCH FLATS: 0.250 INCHES NOMINAL IN
•
DRIVE SHANK TYPE: HEXAGON
•
TIP TYPE: PHILLIPS CROSS
•
SPECIFICATION/STANDARD DATA: 05047-ASME B107.600 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
•
NONDEFINITIVE SPEC/STD DATA: 2 TYPE AND 2 CLASS
•
FEATURES PROVIDED: MANUAL TOOL
•
TIP SIZE DESIGNATION: 2
TECHNICAL CHARACTERISTICS
SHANK WIDTH ACROSS WRENCH FLATS0.250 INCHES NOMINAL IN
OVERALL LENGTH1.125 INCHES NOMINAL IN
DRIVE SHANK TYPEHEXAGON
TIP TYPEPHILLIPS CROSS
SPECIFICATION/STANDARD DATA05047-ASME B107.600 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
NONDEFINITIVE SPEC/STD DATA2 TYPE AND 2 CLASS
FEATURES PROVIDEDMANUAL TOOL
TIP SIZE DESIGNATION2
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
BB49375InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
3632InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
7099710InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
999InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
2BInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
14InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is XL21?
XL21 is a HOUSING,BEARING UNIT.
What parts can replace XL21?
There are 23 known substitutes for XL21: BB49375, 3632, 7099710 and 20 more. Substitute compatibility should be verified for your specific system.
Is XL21 still available?
XL21 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: September 2026