PartsTable
Technical Data Sheet
127-25 ✓ Verified by PartsTable
· BALL BEARING
WHAT YOU NEED TO KNOW
2RS = sealed for life, ZZ = shielded re-greaseable ABEC grade: higher = tighter tolerance
ABEC-1 standard, ABEC-7+ for precision spindles
PRODUCT OVERVIEW

The COVER,RADOME is a the manufacturer industrial component. Key specifications include shape: STRAIGHT, length: 2.000 INCHES NOMINAL IN, diameter: 0.250 INCHES NOMINAL IN, material: TUNGSTEN CARBIDE, corner_shape: SQUARE OUTSIDE RIGHT CORNER, flange_width: 0.0290 INCHES MINIMUM AND 0.0310 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-723-3940, 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
127-25
NSN: 3120-00-723-3940
FSC: 3120
CAGE: 12639 — NORTHFIELD PRECISION INSTRUMENT CORP DBA NORTHFIELD PRECISION INSTRUMENT CORP (USA)
SPECIFICATIONS
shapeSTRAIGHT
length2.000 INCHES NOMINAL IN
diameter0.250 INCHES NOMINAL IN
materialTUNGSTEN CARBIDE
corner_shapeSQUARE OUTSIDE RIGHT CORNER
flange_width0.0290 INCHES MINIMUM AND 0.0310 INCHES MAXIMUM IN
mounting_shankINCLUDED
overall_length0.0930 INCHES MINIMUM AND 0.0937 INCHES MAXIMUM IN
overall_diameter0.125 INCHES NOMINAL IN
special_featuresF-22 GROUND SUPPORT
style_designatorBALL SHAPE
body_inside_diameter0.0783 INCHES MINIMUM AND 0.0785 INCHES MAXIMUM IN
NSN3120-00-723-3940
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 127-25 · OEM ⚠ VERIFY BEFORE ORDERING ABEC grade: higher = tighter tolerance = higher cost. ABEC-1 is standard, ABEC-7+ for precision spindles. Open, shielded (ZZ), and sealed (2RS) versions have different max RPM ratings ✓ BROKER TIP 2RS = sealed for life (no maintenance). ZZ = shielded, re-greaseable. Open = must lubricate on install. Common interchange: 6205-2RS = 6205-2RSR = 6205-DDU (same bearing, different suffix) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
MATERIAL: OIL LUBRICATING LUBRICATION
CORNER SHAPE: SQUARE INSIDE RIGHT CORNER
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-B-5697,TY 1,COMP A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
STYLE DESIGNATOR: SOLID, EXTERNAL FLANGE ONE END
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALOIL LUBRICATING LUBRICATION
CORNER SHAPESQUARE INSIDE RIGHT CORNER
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-B-5697,TY 1,COMP A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
CORNER SHAPESQUARE LEFT FLANGE OUTSIDE RIGHT CORNER
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-L-6085 MIL SPEC SINGLE MATERIAL RESPONSE LUBRICATION
CORNER SHAPESQUARE INSIDE LEFT CORNER
CORNER SHAPESQUARE LEFT FLANGE BODY CORNER
STYLE DESIGNATORSOLID, EXTERNAL FLANGE ONE END
MATERIALCOPPER ALLOY OVERALL
CORNER SHAPESQUARE OUTSIDE LEFT CORNER
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
SD-11Interchangeable
interchangeable cross-reference
interchangeable
D-103Interchangeable
interchangeable cross-reference
interchangeable
157855Interchangeable
interchangeable cross-reference
interchangeable
12725Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 127-25?
127-25 is a COVER,RADOME.
What parts can replace 127-25?
There are 4 known substitutes for 127-25: SD-11, D-103, 157855 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 127-25?
127-25 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-723-3940. This indicates validated use in U.S. government and defense supply chains.
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