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Technical Data Sheet
121798 ✓ Verified by PartsTable
· COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The DISK,VALVE is a the manufacturer industrial component. Key specifications include special_features: INLET SHUT-OFF VALVE DISC, style_designator: PLAIN, end_item_identification: AERCO DIALABLE ORIFICE VALVE, media_for_which_designed: STEAM. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5320-00-971-7871, 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
121798
NSN: 5320-00-971-7871
FSC: 5320
CAGE: Z4732 — HAULMARK TRAILERS (AUSTRALIA) PTY LTD (AUS)
SPECIFICATIONS
special_featuresINLET SHUT-OFF VALVE DISC
style_designatorPLAIN
end_item_identificationAERCO DIALABLE ORIFICE VALVE
media_for_which_designedSTEAM
NSN5320-00-971-7871
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available DISK,VALVE TITLE COMPONENT PN 121798 MFR DISK,VALVE
KEY FEATURES
HEAD STYLE: OVAL/TRUSS
SHANK STYLE: PULL THROUGH HOLLOW SHANK
SHEAR STRENGTH: 280 SINGLE POUNDS PER SQUARE INCH
SURFACE TREATMENT: ZINC AND CHROMATE OR CADMIUM OR CADMIUM AND CHROMATE OR CADMIUM AND PHOSPHATE OR PHOSPHATE ZINC BODY
MATERIAL: STEEL COMP 1030 OR STEEL COMP 1033 OR STEEL COMP 1034 OR STEEL COMP 1035 OR STEEL COMP 1536 OR STEEL COMP 1037 OR STEEL COMP 1038 OR STEEL COMP 1039 OR STEEL COMP 1040 OR STEEL COMP 1541 OR STEEL COMP 1042 OR STEEL COMP 1043 OR STEEL COMP 1044 OR STEEL COMP 1045 OR STEEL COMP 1046 OR STEEL COMP 1548 OR STEEL COMP 1049 OR STEEL COMP 1050 OR STEEL COMP 1551 OR STEEL COMP 1552 OR STEEL COMP 1053 OR STEEL COMP 1055 OR STEEL COMP 1059 OR STEEL COMP 1060 MANDREL
HEAD MAJOR DIAMETER: 0.238 INCHES MINIMUM AND 0.262 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-Z-325,TY 2,CL 3 FED SPEC 1ST TREATMENT RESPONSE OR QQ-P-416 FED SPEC 2ND TREATMENT RESPONSE OR QQ-P-416 MIL SPEC 1ST TREATMENT RESPONSE OR QQ-P-416 FED SPEC 4TH TREATMENT RESPONSE OR MIL-P-16232 TY Z,CL 2 OR 4 MIL SPEC 5TH TREATMENT RESPONSE MANDREL
TECHNICAL CHARACTERISTICS (FLIS)
HEAD STYLEOVAL/TRUSS
SHANK STYLEPULL THROUGH HOLLOW SHANK
SHEAR STRENGTH280 SINGLE POUNDS PER SQUARE INCH
SURFACE TREATMENTZINC AND CHROMATE OR CADMIUM OR CADMIUM AND CHROMATE OR CADMIUM AND PHOSPHATE OR PHOSPHATE ZINC BODY
SURFACE TREATMENTZINC AND CHROMATE OR CADMIUM OR CADMIUM AND CHROMATE OR CADMIUM AND PHOSPHATE OR PHOSPHATE ZINC MANDREL
MATERIALSTEEL COMP 1030 OR STEEL COMP 1033 OR STEEL COMP 1034 OR STEEL COMP 1035 OR STEEL COMP 1536 OR STEEL COMP 1037 OR STEEL COMP 1038 OR STEEL COMP 1039 OR STEEL COMP 1040 OR STEEL COMP 1541 OR STEEL COMP 1042 OR STEEL COMP 1043 OR STEEL COMP 1044 OR STEEL COMP 1045 OR STEEL COMP 1046 OR STEEL COMP 1548 OR STEEL COMP 1049 OR STEEL COMP 1050 OR STEEL COMP 1551 OR STEEL COMP 1552 OR STEEL COMP 1053 OR STEEL COMP 1055 OR STEEL COMP 1059 OR STEEL COMP 1060 MANDREL
HEAD MAJOR DIAMETER0.238 INCHES MINIMUM AND 0.262 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-Z-325,TY 2,CL 3 FED SPEC 1ST TREATMENT RESPONSE OR QQ-P-416 FED SPEC 2ND TREATMENT RESPONSE OR QQ-P-416 MIL SPEC 1ST TREATMENT RESPONSE OR QQ-P-416 FED SPEC 4TH TREATMENT RESPONSE OR MIL-P-16232 TY Z,CL 2 OR 4 MIL SPEC 5TH TREATMENT RESPONSE MANDREL
MATERIALSTEEL COMP 1006 OR STEEL COMP 1008 OR STEEL COMP 1009 OR STEEL COMP 1010 BODY
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-Z-325,TY 2,CL 3 FED SPEC 1ST TREATMENT RESPONSE OR QQ-P-416 FED SPEC 2ND TREATMENT RESPONSE OR QQ-P-416 MIL SPEC 1ST TREATMENT RESPONSE OR QQ-P-416 FED SPEC 4TH TREATMENT RESPONSE OR MIL-P-16232,TY Z,CL 2 OR 4 MIL SPEC 5TH TREATMENT RESPONSE BODY
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
121798Interchangeable
interchangeable cross-reference
interchangeable
PL-C-066Interchangeable
interchangeable cross-reference
interchangeable
PL-C-066 ITEM 25Interchangeable
interchangeable cross-reference
interchangeable
811-00001Interchangeable
interchangeable cross-reference
interchangeable
SB45Interchangeable
interchangeable cross-reference
interchangeable
SD45BSInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 121798?
121798 is a DISK,VALVE.
What parts can replace 121798?
There are 9 known substitutes for 121798: 121798, PL-C-066, PL-C-066 ITEM 25 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 121798?
121798 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5320-00-971-7871. This indicates validated use in U.S. government and defense supply chains.
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