Home · FSC 4240 Safety And Rescue Equipment · NSN 4240-01-247-7239

NSN 4240-01-247-7239 — Filter,Respirator,Air Filtering

NIIN 01-247-7239 · unit of issue PG · AAC J (not stocked, central procurement) · source of supply SMS

NSN 4240-01-247-7239 is the national stock number for a filter,respirator,air filtering in federal supply class 4240 (Safety And Rescue Equipment). It cross-references to 2 manufacturer part numbers from 3 CAGE codes, including Square D Co Monroe Plant, Aearo Company, American Optical Co; the primary is 51019. The unit of issue is PG and the FLIS list price is $207.50.

No government purchase of this stock number is on our record yet. 1 solicitation is open right now, the soonest due October 13, 2026 for 1 . No seller has confirmed stock of it here in the last 30 days; watching the number is free and the first listing triggers an alert.

2

part numbers from 3 CAGEs

1

open solicitation, all agencies

0

government buys in 24 months

0

sellers with confirmed stock

Watch NSN 4240-01-247-7239: an email the morning the government solicits or buys it, or an AD names it. Free.
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Cross-references

Part numbers filed against this stock number, with the manufacturer (CAGE) and the FLIS reference codes.

Part numberCAGEManufacturerReferenceVariation
R50AW63984Square D Co Monroe Plant3 · Design control (vendor)2 · Fully interchangeable
5101988309Aearo Company5 · Secondary reference9 · Reference only
5101902622American Optical Co5 · Secondary reference9 · Reference only
R50AW02622American Optical Co5 · Secondary reference9 · Reference only

Government demand

Open DLA RFQs (DIBBS)

What the government paid

No government purchase on record for this NSN.

Sources: DLA DIBBS procurement history (unit cost), DLA award history, FPDS (all agencies), SAM.gov notices.

Sellers with confirmed stock

No seller has confirmed stock on this NSN in the last 60 days. Watch it and we will email you when one does, or request a quote on 51019.

Request 51019

No account needed. Goes to the sellers who carry this number or its family.

Listings appear here only while the seller has confirmed them within 60 days. Sellers: list this part free.

DLA management data

FLIS unit price
$207.50
Unit of issue
PG
Acquisition advice
J — Not stocked, central procurement
Source of supply
SMS
Effective
Oct 1, 2026

Item characteristics

Hazard Protection Feature
DUST AND MIST AND METAL FUMES
Criticality Code Justification
FEAT
Special Features
SOLE SOURCE REQUIRED BY STATUTE 6.302; TC-21C-297

Related stock numbers

Other NSNs filed under the same part numbers.

About this page

An NSN is 13 digits: the 4-digit Federal Supply Class and the 9-digit NIIN. Cross-references come from the federal logistics record; demand from DLA DIBBS, SAM.gov and FPDS; ADs from the Federal Register. Refreshed nightly. Market Pulse shows the whole market.

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