PartsTable
Technical Data Sheet
A6977A ✓ Verified by PartsTable
HP · 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 SIREN,FLUID OPERATED is a HP industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6350-00-270-1048, 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
A6977A
NSN: 6350-00-270-1048
FSC: 6350
CAGE: 01343 — ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY (USA)
SPECIFICATIONS
Part NumberA6977A
ManufacturerHP
NSN6350-00-270-1048
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR MFR: HP SIREN,FLUID OPERATED TITLE COMPONENT PN A6977A MFR HP SIREN,FLUID OPERATED
KEY FEATURES
GENERAL CHARACTERISTICS ITEM DESCRIPTION: STEAM OPERATED; OPERATING VALVE DATA,VALVE INTEGRAL W/SIREN BODY,INLET CONNECTION,FLANGE,STYLE NO. 1,SECTION B,REF DWG GROUP 43,1-1/2 IN. PIPE SIZE,FLANGED CONNECTION,5-3/8 IN. OD,13/16 IN. THK,4-1/16 IN. DIA BOLT CIRCLE,5 BOLT HOLES,11/16 IN. DIA HOLES; W/DRAIN VALVE,PIPE TAP CONNECTION,3/8 IN. SIZE OF CONNECTION; PRESSURE DATA,150 PSI PRESSURE,225 PSI HYDROSTATIC TEST PRESSURE; PROJECTOR HORN DATA,90 DEG ANGLE HORN,8-3/8 IN. DIA OF HORN OPENING; GUNMETAL AND BRONZE; FINISH A/A; MTG DATA,VERTICAL MTG W/HORN UP,FLANGE MOUNTED; OVER-ALL DIM.,22-3/16 IN. HIGH,10-5/8 IN. W; DATA REGARDING A TYPICAL MFR,STAR BRASS MFG CO,BOSTON,MASS,CODE NO. 57072,PART NO. A-6278-A; FOR GENERAL PURPOSE USE IN
TECHNICAL CHARACTERISTICS (FLIS)
GENERAL CHARACTERISTICS ITEM DESCRIPTIONSTEAM OPERATED; OPERATING VALVE DATA,VALVE INTEGRAL W/SIREN BODY,INLET CONNECTION,FLANGE,STYLE NO. 1,SECTION B,REF DWG GROUP 43,1-1/2 IN. PIPE SIZE,FLANGED CONNECTION,5-3/8 IN. OD,13/16 IN. THK,4-1/16 IN. DIA BOLT CIRCLE,5 BOLT HOLES,11/16 IN. DIA HOLES; W/DRAIN VALVE,PIPE TAP CONNECTION,3/8 IN. SIZE OF CONNECTION; PRESSURE DATA,150 PSI PRESSURE,225 PSI HYDROSTATIC TEST PRESSURE; PROJECTOR HORN DATA,90 DEG ANGLE HORN,8-3/8 IN. DIA OF HORN OPENING; GUNMETAL AND BRONZE; FINISH A/A; MTG DATA,VERTICAL MTG W/HORN UP,FLANGE MOUNTED; OVER-ALL DIM.,22-3/16 IN. HIGH,10-5/8 IN. W; DATA REGARDING A TYPICAL MFR,STAR BRASS MFG CO,BOSTON,MASS,CODE NO. 57072,PART NO. A-6278-A; FOR GENERAL PURPOSE USE IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
A6860AInterchangeable
interchangeable cross-reference
interchangeable
A6776AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A6977A?
A6977A is a SIREN,FLUID OPERATED manufactured by HP.
What parts can replace A6977A?
There are 2 known substitutes for A6977A: A6860A, A6776A. Substitute compatibility should be verified for your specific system.
What is the NSN for A6977A?
A6977A is cataloged in the Federal Logistics Information System (FLIS) under NSN 6350-00-270-1048. This indicates validated use in U.S. government and defense supply chains.
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