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Technical Data Sheet
1157K21 ✓ Verified by PartsTable
· COMPONENT
WHAT YOU NEED TO KNOW
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Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The OILER,SELF-FEEDING is a the manufacturer industrial component. Key specifications include height: 5.312 INCHES NOMINAL IN, material: GLASS OVERALL, oil_capacity: 1.500 FLUID OUNCES, style_designator: STRAIGHT, REGULATED, W/ SHUT-OFF AND SIGHT FEED, nominal_thread_size: 0.250 INCHES IN, thread_quantity_per_inch: 18. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4930-00-242-2957, 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
1157K21
NSN: 4930-00-242-2957
FSC: 4930
CAGE: 07BY4 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
height5.312 INCHES NOMINAL IN
materialGLASS OVERALL
oil_capacity1.500 FLUID OUNCES
style_designatorSTRAIGHT, REGULATED, W/ SHUT-OFF AND SIGHT FEED
nominal_thread_size0.250 INCHES IN
thread_quantity_per_inch18
assembly_clearance_radius1.000 INCHES NOMINAL IN
nondefinitive_spec/std_dataF TYPE
screw_thread_series_designatorNPT
NSN4930-00-242-2957
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available OILER,SELF-FEEDING TITLE COMPONENT PN 1157K21 MFR OILER,SELF-FEEDING
KEY FEATURES
SCREW THREAD SERIES DESIGNATOR: NPT
ASSEMBLY CLEARANCE RADIUS: 1.000 INCHES NOMINAL IN
HEIGHT: 5.312 INCHES NOMINAL IN
THREAD QUANTITY PER INCH: 18
NOMINAL THREAD SIZE: 0.250 INCHES IN
NONDEFINITIVE SPEC/STD DATA: F TYPE
STYLE DESIGNATOR: STRAIGHT, REGULATED, W/ SHUT-OFF AND SIGHT FEED
MATERIAL: GLASS OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
SCREW THREAD SERIES DESIGNATORNPT
ASSEMBLY CLEARANCE RADIUS1.000 INCHES NOMINAL IN
HEIGHT5.312 INCHES NOMINAL IN
THREAD QUANTITY PER INCH18
NOMINAL THREAD SIZE0.250 INCHES IN
NONDEFINITIVE SPEC/STD DATAF TYPE
STYLE DESIGNATORSTRAIGHT, REGULATED, W/ SHUT-OFF AND SIGHT FEED
MATERIALGLASS OVERALL
OIL CAPACITY1.500 FLUID OUNCES
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
Q2421Interchangeable
interchangeable cross-reference
interchangeable
X-2054Interchangeable
interchangeable cross-reference
interchangeable
MILC1258Interchangeable
interchangeable cross-reference
interchangeable
600B-1Interchangeable
interchangeable cross-reference
interchangeable
1300-1Interchangeable
interchangeable cross-reference
interchangeable
D399XInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1157K21?
1157K21 is a OILER,SELF-FEEDING.
What parts can replace 1157K21?
There are 17 known substitutes for 1157K21: Q2421, X-2054, MILC1258 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1157K21?
1157K21 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4930-00-242-2957. This indicates validated use in U.S. government and defense supply chains.
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