High Flow Back Plate4820-01-099-9661

NSN 4820-01-099-9661 · NIIN 010999661

FSC 4820 — Valves, Nonpowered · FSG 48 — Valves

Government record, cited

Also searched as 4820-01-099-9661 · 4820010999661 · NIIN 010999661 · 01-099-9661 · FSC 4820 Valves, Nonpowered · 9333-00-0000 PIECE 204 · 9333-00-2040 · 9333-00-0000 PIECE 204 · 9333-00-2040 · 9333-00-2040-500

Nearby stock numbers ← 4820-01-099-9657 Parts Kit, Safety Relief Valve · 4820-01-099-9758 Head, Safety, Pressure Relief →

4820-01-099-9661 — Valves, Nonpowered

Features

High Flow Back Plate — FSC 4820
General Characteristics Item Description: CONSISTS OF THE FOLLOWING ITEMS; HEX NUT,12; SOCKET HEAD CAP SCREW,16; SPACER,6; MICROSWITCH,6; WASHER,PLAIN,12; SLOTTED HEAD MACHINE SCREW,12; SOCKET HEAD CAP SCREW,4; WASHER,PLAIN,12; SPRING LOCKWASHER,12; SCREW PLATE,4; CAP,DUST,4; CROSS REC PAN HEAD MACHINE SCREW,16; WIRE MARKER,15; WIRE,ELECTRICAL,4; SPACER,1; CROSS REC PAN HEAD MACHINE SCREW,16; SOCKET INSERT ASSEMBLY,1; CROSS REC PAN HEAD MACHINE SCREW,4; HIGH FLOW BACK PLATE,1; SOCKET INSERT ASSEMBLY,2; PIN ASSEMBLY,1; HANDJACK BLANK,2

Identification

NSN: 4820-01-099-9661
NIIN: 010999661
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves

General Description

The High Flow Back Plate, cataloged under National Stock Number 4820-01-099-9661, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-099-9661
Item Name	High Flow Back Plate
FSC / FSG	4820 / 48 — Valves, Nonpowered
Status	ACTIVE
General Characteristics Item Description	CONSISTS OF THE FOLLOWING ITEMS; HEX NUT,12; SOCKET HEAD CAP SCREW,16; SPACER,6; MICROSWITCH,6; WASHER,PLAIN,12; SLOTTED HEAD MACHINE SCREW,12; SOCKET HEAD CAP SCREW,4; WASHER,PLAIN,12; SPRING LOCKWASHER,12; SCREW PLATE,4; CAP,DUST,4; CROSS REC PAN HEAD MACHINE SCREW,16; WIRE MARKER,15; WIRE,ELECTRICAL,4; SPACER,1; CROSS REC PAN HEAD MACHINE SCREW,16; SOCKET INSERT ASSEMBLY,1; CROSS REC PAN HEAD MACHINE SCREW,4; HIGH FLOW BACK PLATE,1; SOCKET INSERT ASSEMBLY,2; PIN ASSEMBLY,1; HANDJACK BLANK,2

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	X

Cross-Reference Index

No manufacturer part numbers on file in the U.S. Government catalog.

Reference documents

Reference	Meaning
9333-00-0000 PIECE 204	5/9 Secondary reference U.S. Government activity
9333-00-2040	5/9 Secondary reference U.S. Government activity
9333-00-0000 PIECE 204	5/2 Secondary reference U.S. Government activity
9333-00-2040	5/9 Secondary reference U.S. Government activity
9333-00-2040-500	3/2 Design control — primary reference U.S. Government activity

No interchangeability data on file.

Other items in FSC 4820 — Valves, Nonpowered

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

4820-00-000-0097

4820-00-000-0097 · Item name not on file

4820-00-001-0010

VALVE,ROTARY,SELECTOR

4820-00-001-0020

4820-00-001-0020 · Item name not on file

4820-00-001-0021

4820-00-001-0021 · Item name not on file

4820-00-001-0032

4820-00-001-0032 · Item name not on file

4820-00-001-0037

VALVE,SAFETY RELIEF

4820-00-001-0042

4820-00-001-0042 · Item name not on file

4820-00-001-1230

4820-00-001-1230 · Item name not on file

Frequently Asked Questions

What is NSN 4820-01-099-9661?

NSN 4820-01-099-9661 is a High Flow Back Plate, classified under FSC 4820, Valves, Nonpowered. Status: active.

What are the specifications of 4820-01-099-9661?

Key specifications for 4820-01-099-9661: General Characteristics Item Description: CONSISTS OF THE FOLLOWING ITEMS; HEX NUT,12; SOCKET HEAD CAP SCREW,16; SPACER,6; MICROSWITCH,6; WASHER,PLAIN,12; SLOTTED HEAD MACHINE SCREW,12; SOCKET HEAD CAP SCREW,4; WASHER,PLAIN,12; SPRING LOCKWASHER,12; SCREW PLATE,4; CAP,DUST,4; CROSS REC PAN HEAD MACHINE SCREW,16; WIRE MARKER,15; WIRE,ELECTRICAL,4; SPACER,1; CROSS REC PAN HEAD MACHINE SCREW,16; SOCKET INSERT ASSEMBLY,1; CROSS REC PAN HEAD MACHINE SCREW,4; HIGH FLOW BACK PLATE,1; SOCKET INSERT ASSEMBLY,2; PIN ASSEMBLY,1; HANDJACK BLANK,2. 1 specification is documented in the U.S. Government catalog.

Is NSN 4820-01-099-9661 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.

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