PartsTable TECHNICAL DATA SHEET

NSN 4510-01-578-0844Government record, cited

Drain, Floor4510-01-578-0844

NSN 4510-01-578-0844 · NIIN 015780844 · Part number DD 20 A L 100

Naval Sea Systems Command · FSC 4510 — Plumbing Fixtures and Accessories · FSG 45 — Plumbing, Heating, and Waste Disposal · CAGE 53711

Government record, cited

NSN 4510-01-578-0844 — this item is cataloged by the U.S. Government under National Stock Number 4510-01-578-0844. Manufacturer of record part number: DD 20 A L 100.

Also searched as 4510-01-578-0844 · 4510015780844 · NIIN 015780844 · 01-578-0844 · FSC 4510 Plumbing Fixtures and Accessories · CAGE 53711 · DD 20 A L 100 · 803-6983511

Nearby stock numbers ← 4510-01-578-0841 Drill Fixture Assembly · 4510-01-578-1022 Drain, Floor →

Features

Drain,floor — FSC 4510
2 manufacturer part numbers on file
Manufacturer of record: Naval Sea Systems Command

Identification

NSN: 4510-01-578-0844
NIIN: 015780844
FSC: 4510 — Plumbing Fixtures and Accessories
FSG: 45 — Plumbing, Heating, and Waste Disposal
Primary part number: DD 20 A L 100
Manufacturer: Naval Sea Systems Command

General Description

The Drain,floor, cataloged under National Stock Number 4510-01-578-0844, is classified within Federal Supply Class 4510 (Plumbing Fixtures and Accessories) of the Plumbing, Heating, and Waste Disposal group. The manufacturer of record is Naval Sea Systems Command. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 7 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4510-01-578-0844
Primary Part Number	DD 20 A L 100
Item Name	Drain,floor
FSC / FSG	4510 / 45 — Plumbing Fixtures and Accessories
Manufacturer	Naval Sea Systems Command
Status	ACTIVE

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

⇄ Related Items 7

Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.

5306-01-578-1008DD 00 C C 020 POSSIBLE MATCH

BOLT,SHOULDER

Possible match (shared part number)Naval Sea Systems Command

4510-01-578-1022DD 15 A L 100 POSSIBLE MATCH

DRAIN,FLOOR

Possible match (shared part number)Bae Systems San Diego Ship Repair Inc. Div Bae Systems Maritime Solutions San Diego Inc

4510-01-578-1029DD 15 A S 100 POSSIBLE MATCH

DRAIN,FLOOR

Possible match (shared part number)Naval Sea Systems Command

4510-01-578-1109DD 20 D L 100 POSSIBLE MATCH

DRAIN,FLOOR

Possible match (shared part number)Bae Systems San Diego Ship Repair Inc. Div Bae Systems Maritime Solutions San Diego Inc

4510-01-578-1126DD 20 C F 100 POSSIBLE MATCH

DRILL FIXTURE ASSEMBLY

Possible match (shared part number)Naval Sea Systems Command

4510-01-578-1143DD 20 A S 100 POSSIBLE MATCH

DRAIN,FLOOR

Possible match (shared part number)Bae Systems San Diego Ship Repair Inc. Div Bae Systems Maritime Solutions San Diego Inc

4510-01-578-1209803-6983511 POSSIBLE MATCH

DRAIN,FLOOR

Possible match (shared part number)Naval Sea Systems Command

Cross-Reference Index

Part Number	Manufacturer
DD 20 A L 100 PRIMARY	Naval Sea Systems Command (USA)
DD 20 A L 100 PRIMARY	Bae Systems San Diego Ship Repair Inc. Div Bae Systems Maritime Solutions San Diego Inc (USA)

Reference documents

Reference	Meaning
803-6983511	D/9 Drawing number reference only Naval Sea Systems Command

Related Parts

5306-01-578-1008POSSIBLE MATCH

BOLT,SHOULDER

DD 00 C C 020

4510-01-578-1022POSSIBLE MATCH

DRAIN,FLOOR

DD 15 A L 100

4510-01-578-1029POSSIBLE MATCH

DRAIN,FLOOR

DD 15 A S 100

4510-01-578-1109POSSIBLE MATCH

DRAIN,FLOOR

DD 20 D L 100

4510-01-578-1126POSSIBLE MATCH

DRILL FIXTURE ASSEMBLY

DD 20 C F 100

4510-01-578-1143POSSIBLE MATCH

DRAIN,FLOOR

DD 20 A S 100

4510-01-578-1209POSSIBLE MATCH

DRAIN,FLOOR

803-6983511

Frequently Asked Questions

What is NSN 4510-01-578-0844?

NSN 4510-01-578-0844 is a Drain,floor, manufactured by Naval Sea Systems Command, classified under FSC 4510, Plumbing Fixtures and Accessories. Status: active.

What part numbers are listed for NSN 4510-01-578-0844?

NSN 4510-01-578-0844 has 2 manufacturer part numbers on file: DD 20 A L 100 (Naval Sea Systems Command), DD 20 A L 100 (Bae Systems San Diego Ship Repair Inc. Div Bae Systems Maritime Solutions San Diego Inc).

What NSN replaces 4510-01-578-0844?

7 possible matches (shared part number, not a government interchangeability claim): 5306-01-578-1008, 4510-01-578-1022, 4510-01-578-1029. Verify interchangeability with system specifications before substitution.

What are the specifications of DD 20 A L 100?

Key specifications for DD 20 A L 100: Special Features: (DWG TITLE) DECK DRAIN INSERT COMPOSITE 1.5 INCH AND 2.0 INCH; 2.0 INCH TYPE "A", LONG BODY IN; Part Name Assigned by Controlling Agency: DECK DRAIN ASSEMBLY; End Item Identification: DECK DRAIN, TYPE A, 2 INCH IN. 0 specifications are documented in the U.S. Government catalog.

Is NSN 4510-01-578-0844 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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